How the brain creates out-of-the-body experiences and religious epiphanies
Having myself having had both (an out-of-the-body experience as a child after a massive dose of penicillin), and a religious epiphany while walking on the top of the walls of Jerusalem in 1990, I found this article by Dr. Sacks very interesting. Does it preclude a genuine religious experience of God? Personally, I think the jury is still out.
Seeing God in the Third Millennium – Oliver Sacks – The Atlantic.