Also known as "Astral Projection", "Mind Walking", and "Spirit Walking" it is described as "Stepping out of your corporeal body and moving around the world."
I've never accomplished this while meditating (and I'm not the type to experiment with drugs) but I did have this type of experience while volunteering as a test subject for a sensory deprivation experiment at UNLV. In that experience I got out of the tank (without opening it which was weird), walked out of the lab and got in my car (again by just sort of being outside of my car and then inside the car). I was thinking about how I could start the car without my keys when I realized I was completely naked and in that realization the experience stopped and I was back in the tank.
People are known to hallucinate in such tanks, it is expected, I found the experience very unlike dreaming and much more like I was more literally conscious the entire time.
