Or dreams...Also, are there any dreams that seemed so real that they left unusually vivid memories? I once dreamt [after watching some good sci-fi] that I could travel through time by drinking automotive antifreeze [a very deadly poison]. In my dream, some unknown person was convincing me that this would work. I remember looking at the glass vial holding the fluorescent yellow-green liquid and trying to gather strength to drink this stuff. For some reason I knew he was telling the truth. Finally, as I started to drink, I felt myself passing out...as I woke up! As I was waking, I could actually taste the antifreeze [ethylene glycol] for a moment – unfortunately I am familiar with the taste from working on cars. It was an extremely vivid and intense dream that left me wondering for several moments whether or not I had been dreaming. This was probably the strangest and most intense dream that I have ever had. Many dreams are very strange, but when coupled with the intensity, this dream was unique. I guess for me this completely rules out the notion that we only dream in black and white.