Wow, how awesome that you've experienced this before! The Jewish Kaballah also mentions bilocation, and Anthony Royer's massive book about mystic phenomena. What does science have to say about it? I kinda don't wanna know. I want to believe it happens for real, not due to some chemical imbalance in the brain. I would be concerned (if it happened to me) about making it "home safe" to one's own body again. And what if two people could swap....? Say there was a car wreck, and two people left their bodies at the same time, and there's no thin silver thread (as Shirley McClaine described it) tethering the soul to the body?