I think that we are a part of a huge chemical reaction that is occurring on Earth. In order for our individual fires to burn, we process fuels that were created by the catalytic and energetic relationship we have with our star. In order to be, we must burn, we as entities are never complete, we are in a continuous state of becoming, right up until our individual fire goes out.
The Universe at large is like a huge swap meet, where everything is traded, energy, matter, influence, intention, without this "Swap Meet", of everything seen and unseen, known and unknown, well; "what is" would not be in the form we have come to wonder about, know, and love.
With the glimpses available to me, stretching back into the past, of our infinite dwelling place, (it might as well be, as far as we are concerned), and of its breadth and depth, and yet strange regularity, I gather that we are very small. Yet in our smallness there is such outrageous variation, and yet stultifying sameness, I imagine this exists elsewhere, not us, or like us, but possibly exactly like us, since we are such handy flesh machines.
We are bipedal, and dextrous, curious, furious, and inspired, and utterly dull. In spite of all that we can fathom, or perceive, there really seems to be a whole lot more emptiness, than there is substance. I say the essence of emptiness is longing, nature abhors a vacuum, we are an extension of that, and we feel empty on many occasions in any day. This seems, to my way of thinking, entirely appropriate, it is only a problem if we decide to fill up on the wrong things. There are wrong things, that make the apprehension of the majesty, and beauty of every moment unavailable, lots of wrong things that make our essential lives, unavailable to us.
One of the most wonderful, and useless things we do, is to dwell in our heads, and on the acts of our society, to the extent that we miss the world at large. I try to see the sun for a few minutes every day, I try to take stock of quality and nature of each day, and the angle of the Earth relative to the sun. I try to see the stars each night, or at least check out the sunset. I try to get a smell of the way the world is in its natural state, once a day, and I try to set myself down in the world, that I may just exist for a few moments, kind of clearing the deck, and experiencing fully what it is to be a resident of the Universe, in our Solar System, and on our world, and in my body. From there I reach out to the all, and try to just be right where I am. That helps me keep in balance, and keeps my place in the scheme of things. Where we are in space time, where we are in relation to the light of the changing season, where we are in relation to ourselves, is very important to us. Our current civilization is a thin veneer over the end of a very long history, lived on the cheek of The Universe, and desperately in need of its bounties.
Emptiness to me is a reminder of our debt to the all, and the long history of the fire, that is our species. I maintain that the feeling of emptiness it is our innate understanding of the nature of the Universe.