When a man dies, he feels he is waking up to a new reality, and a reality is just a shared experience. It is loss of sensory input makes us lose grip on the cur

When a man dies, he feels he is waking up to a new reality, and a reality is just a shared experience. It is loss of sensory input makes us lose grip on the current reality and look for another source of sensory input, because the void of nonexistence feels worse than the worst existence. The loss of sensory input can be done in a controlled manner: by calming your thoughts and senses before sleep, by floating in a sensory deprivation tank or even by sitting in a completely dark and silent room for many days in a row. In all cases your self will find a way to gather sensory input from other sources and that will be reflected in your memories. I was a hardcore atheist once, hiding in a rock-solid fortress of arrogant scientific knowledge, but that fortress didn't survive an encounter with basic sensory deprivation.