Dreams of the Future: Deja Vu & Knowing What's Next

[chhitiz]

this may sound wierd, but have these feelings of dejavu of everyday events, feeling like i have dreamt of them beforehand.lasting mostly for 30-45 seconds, i suddenly keep knowing what i had dreamt next and that thing happens. then the feeling subsides. funny thing is that i don't remember any of my dreams until 'it' happens. the frequency is once in 3 months. opinions?

 

[Jimmy Snyder]

I never have deja vu. When I don't have one, it's just like the previous one I didn't have. So it's as if I knew exactly what was going to happen next, I wouldn't have yet another one. Weird.

 

[Freddy_Turnip]

i dreamt that Princess Diana died in a car crash - and sure enough a while later she died.

 

[chhitiz]

@freddy um.. were you her driver?
@jimmy i don't have a fitting repartee right now, but keep checking your mail.
anyways i posted this because i seriously do have these experiences, and am curious. can anyone help me?

 

[leroyjenkens]

I have deja vu every once in a while. Like when I'm doing whatever, suddenly I'll get this feeling like the exact same thing in every detail has happened before. It doesn't show me the future or tell me what's going to happen, I only get the deja vu feeling while the event is occurring, and it only lasts a few seconds.
It never provides me with a long duration feeling where I have time to consciously predict what's going to happen next.
But that's my experience with deja vu. Other people apparently experience something different. But I don't believe any of them can see the future.

i dreamt that Princess Diana died in a car crash - and sure enough a while later she died.

I've had people tell me about dreams they had where some event occurs, then later, in real life, the event actually occurs. But the problem is I only hear about these dreams after the event occurs in real life.
I'm not saying you're trying to make it seem like you saw into the future, because you could have very well had that dream and then she died.
It's never happened to me, but right now, I can't recall any dreams I've ever had. I forget them soon after I wake up.

 

[Freddy_Turnip]

Also I dreamt that in 1994 Minnehoma would win the Grand National (which is a steeplechase horse race held at Aintree racecourse in Liverpool in England every year). I told my mate it was going to win and also I put £10 each way on it at 16/1. Lo and behold it came in, and I also had £10 E/W on another horse in the same race.

 

[Gear300]

anyways i posted this because i seriously do have these experiences, and am curious. can anyone help me?

Drugs should help.

 

[drizzle]

I never have deja vu. When I don't have one, it's just like the previous one I didn't have. So it's as if I knew exactly what was going to happen next, I wouldn't have yet another one. Weird.

 

[zoobyshoe]

this may sound wierd, but have these feelings of dejavu of everyday events, feeling like i have dreamt of them beforehand.lasting mostly for 30-45 seconds, i suddenly keep knowing what i had dreamt next and that thing happens. then the feeling subsides. funny thing is that i don't remember any of my dreams until 'it' happens. the frequency is once in 3 months. opinions?

I discussed this once with Nereid and others a long time ago:

https://www.physicsforums.com/showthread.php?p=74932&highlight=deja#post74932

I'm linking to a specific post, but the ones before and after it deal with the subject as well.

 

[alex.cordero]

the frequency is once in 3 months. opinions?

I have an opinion. I would suspect some sort of quantum/dimensional strangeness.

About two years ago, my wife and I were seeing what can only be described as "snippets" of events that would happen in the future. The events were little things like, tapping on a window or moving a table. For example, we saw a hand rapping on a window where there was nobody there. When we investigated, I rapped on the window the way we saw and realized that it was my finger we'd just seen. That's just one example of many. This activity seemed to increase while she was pregnant. After our baby was born, these events ceased. I don't know what a pregnancy has to with this? But that was the only thing that was different in our lives. I talked to two physicists that specialize in paranormal and both agreed that there may be an "extremely" theoretical possibility that we may have seen dimensions being crossed. Since I don't believe in ghosts, this explanation was good enough for us. There were a few weird things that happened after the baby arrived but nothing like what we saw before the birth.

-Alex

 

[zoobyshoe]

About two years ago, my wife and I were seeing...

This is interesting. Just to be clear, when you say "seeing" you are referring to an actual visual event?

 

[alex.cordero]

This is interesting. Just to be clear, when you say "seeing" you are referring to an actual visual event?

Yes, it was an actual, "visual" event. My wife and I saw these events simoultaneously. Neither she nor I believe in supernatural phenomena nor were we freightened by the events. Fascinated is a better word. My wife still sees me walking around outside the house while I'm elsewhere running errands. I think this is described as "bilocation". Peripherally, I see many things but I can't tell what they are. She says that she's not spooked by it anymore--our house is just weird.

 

[zoobyshoe]

Yes, it was an actual, "visual" event. My wife and I saw these events simoultaneously. Neither she nor I believe in supernatural phenomena nor were we freightened by the events. Fascinated is a better word. My wife still sees me walking around outside the house while I'm elsewhere running errands. I think this is described as "bilocation". Peripherally, I see many things but I can't tell what they are. She says that she's not spooked by it anymore--our house is just weird.

I am pretty sure whatever is happening at your house is not the same thing the Opening Poster is experiencing. I have had what chhitiz decribed a couple times: deja vu accompanied by the strong impression you once dreampt what seems familiar. Deja vu is often also accompanied by the feeling you know what is going to happen next, even when you don't feel you are remembering it from a dream. In all cases this is a purely emotional, not visual experience.

 

[chhitiz]

i would rather go with Kenneth V's theory. and, i do not just have a felling of knowing what is going to happen next. it is what i remember from my dreams happening next and it does happen, AFTER i have remembered it from my dream.

 

[zoobyshoe]

i would rather go with Kenneth V's theory. and, i do not just have a felling of knowing what is going to happen next. it is what i remember from my dreams happening next and it does happen, AFTER i have remembered it from my dream.

I used to be plagued with constant deja vu's. On a "good" day I'd have only 5 or 6. On a "bad" day I'd have 3 a minute all day long. This went on for two and a half years.

It took many, many experiences of this to realize that the illusion of knowing the future was caused by the fact we are always more or less speculating about what will happen next, and whatever we happen to speculate while having a deja vu will feel so spectacularly familiar that we are convinced we know what is about to happen. The feeling of familiarity gets stuck to whatever you place your attention on, including your own thoughts.

9 times out of ten, what you're sure is about to happen doesn't. That doesn't matter, because whatever actually does happen seems so spectacularly familiar that we feel justified in having felt we knew what was going to happen next. In other words: the "proof" that you knew what would happen next is the strong feeling of familiarity of whatever happens, and you forgive yourself the fact the actual events don't match up. All you remember are the two important emotional elements: the fact you felt you knew what would happen next, and the fact that what happened felt amazingly familiar. You tend to downplay and forget that the actual specific events you predicted didn't match up.

So, while it could be that the physics of consciousness transcend spacetime, the deja vu is not a result of that. It is just your hippocampus acting up.

 

[shredder666]

omg I've had these experiences since I was like 7, where I dreamed of being in a Canadian classroom and not being able to speak english cus I was chinese back then! and just randomly I have these weird dreams that sometimes corresponds with real life events...

 

[chhitiz]

I used to be plagued with constant deja vu's. On a "good" day I'd have only 5 or 6. On a "bad" day I'd have 3 a minute all day long. This went on for two and a half years.



9 times out of ten, what you're sure is about to happen doesn't. That doesn't matter, because whatever actually does happen seems so spectacularly familiar that we feel justified in having felt we knew what was going to happen next. In other words: the "proof" that you knew what would happen next is the strong feeling of familiarity of whatever happens, and you forgive yourself the fact the actual events don't match up. All you remember are the two important emotional elements: the fact you felt you knew what would happen next, and the fact that what happened felt amazingly familiar. You tend to downplay and forget that the actual specific events you predicted didn't match up.

So, while it could be that the physics of consciousness transcend spacetime, the deja vu is not a result of that. It is just your hippocampus acting up.

no, everytime i have a deja vu, what I'm sure is about to happen does happen. but, then these could, of course be misfiring neurons, even if would hate to admit it to myself

 

[Ascalon]

Sooooo you are saying that deja vu's might be actually the merging of 2 parallel universes and we get a slight flashback? Interesting... i had one recently, i knew what was going to happen yet... I stopped... i looked and observed, the words seemed to be coming out of my mouth yet i had no control of them. There is even cases in which i attemped and succeded to do something different.

Good post

 

[Ivan Seeking]

Sooooo you are saying that deja vu's might be actually the merging of 2 parallel universes and we get a slight flashback?

No, someone said that some unidentified persons said that. We will not be pursuing that discussion.

 

[alex.cordero]

There's a medical explanation for deja vu. It has something to do with the firing order of certain neurons in the brain.

http://www.scientificamerican.com/article.cfm?id=could-deja-vu-be-explained-by-grid-cells

 

[Mentallic]

I've had the same kind of experience the OP is describing. As zoobyshoe has said, I was more excited at the fact that life seemed to play out just like I remember it from way earlier (not even sure if it was from a dream or not) for a dozen or so seconds. What the exact events were I don't remember either, but I do remember that the deja'vu was triggered by some uncommon event that happened in my classroom, and then I started paying close attention to the proceeding events.

Sooooo you are saying that deja vu's might be actually the merging of 2 parallel universes and we get a slight flashback? Interesting... i had one recently, i knew what was going to happen yet... I stopped... i looked and observed, the words seemed to be coming out of my mouth yet i had no control of them. There is even cases in which i attemped and succeded to do something different.

Good post

You, my good man, are sounding crazy!

 

[seldon.paul]

I found the effect of music or sound while I was in sleep.
I realized the sound during my sleep can influence the dream itself.
It was weird.
But, I experimented good music and heavy metal ~
It was different ~ especially when I was about to wake up.
It gives very pleasant feeling secure and serene with the music that I liked.

So, try ~ perhaps you might alter the dream of your course. It worked for me.

 

[Dav333]

Scary how often some of you have deja vu. Almost sounds made up.

I found the effect of music or sound while I was in sleep.
I realized the sound during my sleep can influence the dream itself.

Same. Even an alarm clock

 

[seldon.paul]

I saw the article about altering the dreams in the newspaper, online,
the Strait Times in Singapore, by nearly similar way. Weird ~
I was scared. If inducing good dreams are perfectly fine - but inducing nightmare
or something that one didn't like? under the sleep mode, how one can resist it?
if it was forced - which means negatively used, if any. It has always doubled-edged.
Good and bad -

 

[Altune]

I had this happen to me when I was about 30 years old.
It was almost every day. I would see small slots of time in my subconcionsness whan I was dreaming.
then a few days later the exact thing would occur, so much to where I could predict what a friend wanted to tell me or what was going to happen.

I was critically injured when I was a little child and was in a comma for a while. I am not sure that has anything to do with it . The precog stuff stopped quite a while ago.

 

[seldon.paul]

http://mcvictimsworld.ning.com/

I found these people were suffering with disturbed sleeps.
Very weird way ~

 

[PipBoy]

What do you mean by 'misfiring neurons'? From my limited biological knowledge I'll assume it means that one reacts to stimuli in order to access memories of dreams/visions and thus morph them to suit a situation (unintentionally of course). This would imply that deja vu is entirely subjective and explain the frequency of deja vu in different people. In terms of music (and I consider myself to be quite an expert on weird stuff) try music from a project called 'Sunn 0)))' or Burzum's 'Rundtgåing av den transcendentale egenhetens støtte'; I certainly experienced Deja Vu from these.

 

[Fragment]

I've experienced exactly what the OP is describing. I dream about a certain place or action/event, with all of the components of the surroundings: colors, smells, feel, etc... Then, anywhere from 1-9 months later, I will live exactly what I dreamed. I can literally say what is going to happen in a situation, or what something will look like, all of this before I experience it.

I have ruled this out to be my brain wanting to accommodate my dream, that is, filling in information as I go along. Example: I dream of a vague place, and then can't recall my dream. later on, using my past experiences, I can create an approximate description of the event/place to come, and then once I experience it, my judgment is biased by my will to see my predictions fulfilled, and therefore I accept what I just lived as exactly what I foresaw. I hope this wasn't too confusing.

-F

 

[ranrod]

I get Deja Vu a lot - a lot. once, twice a week, maybe more sometimes. I think it's probably a brain-thing, like a glitch when getting new info into short-term memory. Happens more if I haven't slept well (which I take as evidence of some biological reason). I did look at the links posted here. Interesting.
I remember dreams of things that ended up happening in real life too. I think it's my brain matching one to the other - even if they really didn't match that closely. Sometimes I swear it's a 100% match, but dreams are kind-of hard to recall exactly and they might be more prone to being distorted than real memories.

 

[StandardsGuy]

A few years ago we had a white cat. My wife & I were in the dining room. We both saw the cat walk down the hall. About a minute later the cat was at the sliding door wanting to come in. All the doors and windows were closed. It only happened once, but I have heard other people have had cat stories like this.

 

[deppdeppel]

well i have deja-vus quite often, and it occurred to me on a few events that i remember dreaming that exact event sometime before .. could be its just my brain malfunctioning though.
and if you take in consideration that a lot of our memory is recreated/extrapolated on use from just a few bits of actually saved data...

 

[spicypisces]

I have never spoke of this till now.Since I was a child I had found that I could remember some dreams, that had come to pass.I think the correlation was if you don't reflect on it you forget it.I could remember how I felt in the dream and when that same sensation came to pass I would remember that dream immediately.This is my theory on dejavu basically a dream that had been forgotten and triggered by a feeling and was remembered by that feeling.I believe not everybody has this because of decreased sensitivity by people in general for various reasons.

 

[Evo]

I have never spoke of this till now.Since I was a child I had found that I could remember some dreams, that had come to pass.I think the correlation was if you don't reflect on it you forget it.I could remember how I felt in the dream and when that same sensation came to pass I would remember that dream immediately.This is my theory on dejavu basically a dream that had been forgotten and triggered by a feeling and was remembered by that feeling.I believe not everybody has this because of decreased sensitivity by people in general for various reasons.

Anecdotes are ok as long as you do not propose what they could be. Personal theories are not allowed.

 

[Drakkith]

well i have deja-vus quite often, and it occurred to me on a few events that i remember dreaming that exact event sometime before .. could be its just my brain malfunctioning though.
and if you take in consideration that a lot of our memory is recreated/extrapolated on use from just a few bits of actually saved data...

I've had this happen on 3 occasions, and each time it's almost bewildering. Actually make that 4 times, as it happened last night.

 

[Abod]

I have had few, maybe 5 or 6. During the event, I realize that I have seen it before, and could tell in my mind what will happen next, but unable to know whether I've seen it in a dream or what.

 

[alt]

Dunno about deja vu, but I get a fair bit of jamais vu these days ..

 

[Vladimirr]

Warning: Anecdotes follow

(This is my first post here, been lurking for a while. I will try to keep this objective and analytical while still relaying my personal experiences and conclusions.)

I get deja vu often, usually it's clustered around periods of stress. When I have the deja vu, I "remember" a very specific event, and I experience that event very clearly. After it ends, I get very confused, nauseous, have a severe headache, and feel extremely hot. After the episode, I have very little memory of the event that I was "remembering".

I can try to "stay in" the deja-vu longer, and write down things as I'm experiencing them, but so far nothing's made much sense, and the longer I stay in, the worse I feel afterwards. At this point, I try to get out of the deja-vu as soon as I can so that I'm not knocked out of commission for the rest of the day.

My neurologist says it's likely tied to some other existing neurological issues that I have. The human brain is a very complicated device and can even fool itself about what it thinks it's experiencing from each of its inputs. Obviously not everyone who gets deja vu has a strong negative physiological response afterwards, but it does show that such a thing can be caused by a neurological event of some kind. Occam's razor would seem to apply here.

I can see how people in times past would associate experiences like this with "visions", special powers, or spiritual encounters; it's similar to people with Multiple Sclerosis losing and regaining their sight or ability to walk due to the natural progression/remission of the disease. ( http://www.mult-sclerosis.org/whatisms.html )( http://www.netplaces.com/multiple-sclerosis/the-relapse/remission.htm )

I found this thread online where other people describe their experiences. Thankfully, it's mostly devoid of paranormal or supernatural discussion. I don't endorse these forums, and I disagree with some of the analyses, but you can glean information from the personal experiences of others; I see they are very similar to what I'm trying to explain. ( http://forums.bettermedicine.com/sh...vu-followed-by-nausea-dizziness-and-confusion )

 

[JaredJames]

Can't say I'm convinced. I think the simple fact that it isn't possible to see the future does it for me.

 

[Mentallic]

Neither.

I feel like it's similar to how my aunty thinks the "universe" speaks to her. She told me one time that she woke up to find three birds on her porch. Two of them were facing one way and the other was facing the opposite way. A few months later, her sister turned her back on their parents.
Unsurprisingly, my aunty felt like that the birds were representing this event, even though statistically speaking (ignoring bird behaviours) with 3 birds, there is a 3/4 chance that 1 will be facing the opposite direction.

Also, she feels nauseous when the full moon is out because it obviously affects people and animals physically since it's capable of affecting the tides

 

[SHISHKABOB]

I hate deja vu. I don't get it too often, but every time it happens it makes me feel like a crazy person. I sit there and go "oh, I recognize this, now this is going to happen, and now that, and then that, and now I won't know what's going to happen"

whenever it happens I KNOW that I had had a dream about that situation. One time it was simply being in the car while going past a green hill with some guy with a funny Indian accent talking about selling used cars. Then there was a time where I was wrestling with my dad and he had me upside down and there was the TV right in front of me and it was static. There are many times this happens to me. I'm honestly not sure if I actually had the dreams where these things happen, or if it's simply chance that I had a dream that so closely resembled reality.

In my instances of deja vu I feel as though it's just chance. I dream fairly often and most of the time my dreams vary quite a bit throughout them. Ranging from very realistic events to utterly insane things. Therefore I feel as though it's very likely that I will end up dreaming about a situation that could possibly happen. And then there is the fact that I could be dreaming... but end up not remembering it.

Anyways, deja vu makes me uncomfortable, but I highly doubt that mine have anything out of the ordinary.

 

[zoobyshoe]

My neurologist says it's likely tied to some other existing neurological issues that I have. The human brain is a very complicated device and can even fool itself about what it thinks it's experiencing from each of its inputs. Obviously not everyone who gets deja vu has a strong negative physiological response afterwards, but it does show that such a thing can be caused by a neurological event of some kind. Occam's razor would seem to apply here.

It's well documented that such a thing can have a neurological cause. Someone pointed this out at the forum you linked to, but it bears reiteration: Deja Vu is a common manifestation of a simple partial seizure, which is any seizure activity limited to a small area of one hemisphere. In the case of Deja Vu it is limited to the area around the hippocampus, which is a part of the brain essential to forming memories.

http://www.ncbi.nlm.nih.gov/pubmed/8149215

Simple partial seizures can occur just about anywhere in the brain, though, and the variety of physical, emotional, and sensory symptoms is very wide:

http://emedicine.medscape.com/article/1184384-clinical

Simple partial seizures may or may not precede more serious seizures. When they do they are informally called the "aura" of the more serious seizure.

Deja Vu is sometimes experienced as a Migraine aura as well, but this is probably due to the high co-morbidity of Migraine and Epilepsy, e.g.:

http://www.neurology.org/content/44/11/2105

In other words, someone with a primary diagnosis of Migraine might also be prone to simple partial seizures even though they haven't been diagnosed with epilepsy.

In any event, I personally think the Deja Vu plus the feeling one has dreamt the situation before, is pure neurological illusion. The Deja Vu creates the false memory of a dream that never actually occurred in the past.

 

[Gabe21]

Saying you drempt about a public figure dying(especially one you follow) is statistically normal. for instance if i had a dream that charlie sheen died of and overdose it doesn't mean i predicted the event, it just means out of the millions of people that know of him its very possible that someone dreamed he died. it doesn't make me a future teller of any sort.
Deja vu may also have something to do with the fact that your subconscience receives sensory information before you are aware of it. So if your brain is laging from stress or any other factor then it could just be a redundancy of information.(experiencing it twice)
Dreams are an extension of the subconscience, so it makes sense that if you are thinking about a particular topic for an extended period of time(days or weeks) then your dreams are going to recreate the extreams and inbetweens of that topic.(one of which could be likley to happen)
Deja vu is just the subconscience playing tricks on the conscience, not literally but indirectly. i have deja vu all the time and i have still never gotten use to it.

 

[chhitiz]

wow, so many people confessing to having dreams of the future and deja vus. i have a few questions to all of 'em. doesn't really mean anything, just trying to see what's common-
have you taken a proper IQ test, if so what was your score?
have you been diagnosed with an autism spectrum disorder by a proper psychiatrist?
have you self diagnosed the above but no had professional diagnosis till now, or been denied the possibility by a professional?
have you improper social skills?
are you creative?
would you call yourself an out of box thinker?
r you cold and impersonal or warm an friendly?
do you have migraines?
or what they call as ice-pick headaches?
do you regularly have seizures?
the answers would b highly subjective. and i know this isn't a 'real' real science experiment, but if your answering please be as honest as you can.

 

[Mentallic]

have you taken a proper IQ test, if so what was your score?

No, I haven't. Probably higher than average.

have you been diagnosed with an autism spectrum disorder by a proper psychiatrist?

No, I haven't been diagnosed, have never had any reason to get a diagnosis.

have you self diagnosed the above but no had professional diagnosis till now, or been denied the possibility by a professional?

No, have no self-diagnosed myself to having any kind of autism.

have you improper social skills?

No, I'm quite social.

are you creative?

Not really. Unless having a keen understanding of maths is considered creative.

would you call yourself an out of box thinker?

No.

r you cold and impersonal or warm an friendly?

Unless the person is a jerk or pushes my wrong buttons I'll be warm and friendly. I meet people with a positive attitude.

do you have migraines? or what they call as ice-pick headaches? do you regularly have seizures?

No.

You have to understand that while I felt like I had a deja vu one time, my Aunty has dreams that she feels tell her things about the future, and I find that to be really nutty.

 

[mnb96]

Anecdotes are ok as long as you do not propose what they could be. Personal theories are not allowed.

What was that? A form of censorship in a thread on dreams and deja-vus? Are we serious?
Just kidding. I think the user's intent was simply to describe both his/her own experience, and how he/she perceived it.

In fact, I could add that I experience the same sort of thing that spicypisces described, and quite regularly. That is, I have some dream during the night, and when I wake up in the morning and try to remember what I have dreamt about, I am often totally unable to remember anything, no matter how hard I try. Later on, during the day, I occasionally happen to do some action, or I simply experience some emotion that was very similar to the one I saw/experienced in the dream. Whenever this happens, I first have a strange blurry feeling, as if my brain tried to ring some "warning bell", and then almost instantly I am able to recall the whole dream I had, and I realize that what I am doing/experiencing in the real life situation, is the same (or similar) thing as I experienced in the dream.

For example not so long ago, I simply happened to dream about a person, and in the dream I was feeling good emotions towards this person (..and no! it was not a wet dream if you are thinking in that direction...). I totally forgot the dream, but during the next day I happened to meet that person for real, and for some "weird reason" I started to feel good emotions. I had already learned that when this sort of things happen, it's probably because of a dream I had, and in fact, suddenly I started to remember the whole dream I had. It was a dream that I had previously completely forgotten. Without that event triggering the emotion, I would have been unable to recall the dream. Whether you like it or not, that's how it was, and that's how I felt, and get along with it, Evo

Another more extreme example, was when I was with some friends on a Sunday trip visiting a small town. It started to rain very hard, and we decided to stop in a parking lot, waiting inside the car for that storm to pass. When I was looking at the parking lot and its surroundings, I had one of those strange feelings I described, and I quickly recalled that I saw a very similar parking lot in a dream. I remembered the whole dream, and I also remembered that I had that dream something like two years before! I myself was so surprised of this coincidence that I had to tell my friends I was having an "unusual deja-vu" :)

 

[zoobyshoe]

I had to tell my friends I was having an "unusual deja-vu" :)

What you describe isn't a deja vu, though. You are describing how real life events somehow manage to trigger the memory of a dream you'd forgotten. It also wasn't a "prophetic" dream. You'd merely dreamt of a "similar" parking lot. Your chances of encountering a parking lot are so high it's not surprising you'd end up being reminded later if you had a dream about one.

 

[mnb96]

@zoobyshoe:

I cite from Wikipedia:

"...Déjà vu (French pronunciation: [deʒa vy], literally "already seen") is the feeling of certainty that one has already witnessed or experienced a current situation, even though the exact circumstances of the prior encounter are unclear and were perhaps imagined..."

This perfectly suits the personal experiences/feelings I have reported.

I am no expert in this field, but as far as I understood the concept of Déja vu does not involve any "prophetic" aspect, as you claim. Are you sure you are not confusing Deja vu with premonition?

About my dream of the parking lot, I agree with you when you say that "the chances of encountering a parking lot are so high it's not surprising you'd end up being reminded later if you had a dream about one". In fact, I used carefully my words and I talked about simple "coincidence". What I found surprising was mainly the fact that I was suddenly able to recall for the first time a dream that I had two years before and that I had never been able to recall previously.

 

[zoobyshoe]

@zoobyshoe:

I cite from Wikipedia:

"...Déjà vu (French pronunciation: [deʒa vy], literally "already seen") is the feeling of certainty that one has already witnessed or experienced a current situation, even though the exact circumstances of the prior encounter are unclear and were perhaps imagined..."

This perfectly suits the personal experiences/feelings I have reported.

No, you didn't have the feeling of certainty of having lived through it before, you recalled that you'd dreamt something similar the night before.

I am no expert in this field, but as far as I understood the concept of Déja vu does not involve any "prophetic" aspect, as you claim. Are you sure you are not confusing Deja vu with premonition?

I am not confusing deja vu with premonition. The link is made in the OP with the suggestion that deja vu is caused by a prophetic dream: you dream of the future, then it comes true, hence, a weird feeling of familiarity. Anecdotes to the effect, "I dreamt something, then it came true" would fit this theme. Your anecdote doesn't really tie in.

About my dream of the parking lot, I agree with you when you say that "the chances of encountering a parking lot are so high it's not surprising you'd end up being reminded later if you had a dream about one". In fact, I used carefully my words and I talked about simple "coincidence". What I found surprising was mainly the fact that I was suddenly able to recall for the first time a dream that I had two years before and that I had never been able to recall previously.

It's interesting, yes. I'm concerned about the term "deja vu" getting conflated with similar sounding things that aren't actually deja vu's.

A deja vu is a powerful, mysterious experience in which everything about your present situation seems weirdly familiar when you know it can't possibly be familiar. Try as you might, you can't account for why it seems so intensely familiar. Each minute detail of the situation is familiar, as if your life was a recording and you'd been pushed back in time slightly to relive a moment in every detail as you progressed forward again. I've had thousands of these.

Then there's the experience of having something trigger the memory of an actual dream you had. You run into a person, then suddenly remember you dreamt about them the night before. I've had this and am pretty sure everyone has. You feel very surprised that you've forgotten the dream in the meantime, particularly if it was a powerful dream.

Then there's a third experience which starts as a deja vu: your whole present situation seems uncannily familiar, as if you must have lived through this exact moment before, but, instead of not being able to account for it, you have the strong feeling you had a prophetic dream in which you saw this future moment before it happened. Now that it has come to pass, you suddenly recall the dream in which you 'lived through it before'. That has only happened to me twice.

The first and the last are different than seeing a parking lot and remembering the fact you had two previous dreams in which a parking lot figured prominently. It's an interesting experience, but it's not a deja vu. You had the second experience: something triggered the memory of a dream you'd forgotten.

A deja vu is never a true memory: it's a neurological illusion. You can't remember the present. Remembering a dream you had is a true memory: you actually had the dream at some point in the past.

 

[mnb96]

A deja vu is never a true memory: it's a neurological illusion. You can't remember the present. Remembering a dream you had is a true memory: you actually had the dream at some point in the past.

This sentence was particularly helpful. And apparently these concepts are more subtle than what a casual reader like me is usually led to think.

So, basically what you are trying to say (please, correct me if I am wrong) is that an essential ingredient for one experience to be regarded as a deja-vu is the strong feeling of having experienced the same thing in the past, combined with the impossibility to recollect the actual memory of it (if such memory exists at all). Did I get it right?

I am still a bit puzzled at why you insist that my experience (although admittedly not very interesting) does not fit the definition of deja-vu. You claim that my experiences are not deja-vus because I "didn't have the feeling of certainty of having lived through it before". I actually I did have that feeling, but that feeling usually lasted at most minutes, until I realized that it was due to a dream I had previously.

I cite again from Wikipedia:

Déjà vu [...] is the feeling of certainty that one has already witnessed [...] a current situation, even though the exact circumstances of the prior encounter [...] were perhaps imagined... The "previous" experience is most frequently attributed to a dream [...]

All the component I underlined are present in my experiences, and the fact of being derived from dreams simply enforces the resemblance with the definition above.
Are you perhaps simply trying to say that once you become fully aware that this feeling of "already-seen" is due to a dream, then it ceases to be a deja-vu?

 

[zoobyshoe]

This sentence was particularly helpful. And apparently these concepts are more subtle than what a casual reader like me is usually led to think.

So, basically what you are trying to say (please, correct me if I am wrong) is that an essential ingredient for one experience to be regarded as a deja-vu is the strong feeling of having experienced the same thing in the past, combined with the impossibility to recollect the actual memory of it (if such memory exists at all). Did I get it right?

It's paradoxical and calls attention to itself for being paradoxical: the present has the feeling of being from the past, but you can't link the scene to anything but itself. You are aware the present is reminding you of the present! I used to think of them as "Phantom Memories of the Present". The best "test" of a deja vu is: if the explanation that you have been shoved slightly back in time to relive a moment exactly, is the one that seems to make the most sense. You are always struck by the knowledge it's paradoxical: you can't have experienced the present before, but it seems so powerfully familiar, more familiar, in fact, than authentically familiar situations ever seem.

I am still a bit puzzled at why you insist that my experience (although admittedly not very interesting) does not fit the definition of deja-vu. You claim that my experiences are not deja-vus because I "didn't have the feeling of certainty of having lived through it before". I actually I did have that feeling, but that feeling usually lasted at most minutes, until I realized that it was due to a dream I had previously.

I cite again from Wikipedia:

Déjà vu [...] is the feeling of certainty that one has already witnessed [...] a current situation, even though the exact circumstances of the prior encounter [...] were perhaps imagined... The "previous" experience is most frequently attributed to a dream [...]

You didn't report any " certainty of having lived through it before" when you told the story, though.

I am primarily concerned people don't confuse the terms. Some people confuse "deja vu" with "flashback", for example, which is a completely different phenomenon, though it might sound superficially similar. A flashback has a vivid visual component: the person sees a scene from their past recreated, more or less vividly, right in front of their eyes. It seems perfectly OK to them to call this a "deja vu" because it means "already seen". But that's incorrect. By which I mean, neurologists have sorted out which term they're going to use for which experience, and I think any academically minded person should follow suit.