I've had an out of body experience during an acid trip. I floated away and felt no connection to my body. At one point, my body disappeared completely and I could barely describe myself as a being, I was an empty room.
Also at another point I wasn't sure if I were physically upstairs or downstairs. But my spirit was staring at the TV while Anchorman turned from live-action to a sort of cartoon.
The point is that the brain goes crazy from the slightest thing and we can find ourselves floating around and going to Heaven or looking up as the room dissolved into the Tardis interior.
Stay off drugs kids.