Thank you for your thoughts. The technical details of how this world works is pretty fascinating. I make a distinction between "real" and "not real" based on certain universal parameters. Hallucinations, dreams, imagination - these are "real" in the context of a mental state and perhaps metaphysically, but "not real" in the context of this tangible and interactive reality. Physically walking across a bridge or climbing a mountain or riding a bike - as long as these are not done in an artificial virtual environment, they are "real" and there are no elements of "not real" involved. Of course "augmented" reality is becoming popular, mixing real and not real elements together. But there is still a distinction between "real" and "not-real".
Near-death experiences are fascinating also, especially with the understanding of the separation of body, soul and spirit. There seems to be an ongoing SOUL experience (metaphysically) after the body is no longer functioning in service and the spirit is returned to the LORD of the Spirits who lent it. I believe in a "soul sleep" until the resurrection. There may be a dream "reality" that we experience that is related to our behavior and faith in life: what we may call "heaven" or "hell".