In a BLACK HOLE!
Is not a painting by SALVADOR DALI on your wall?If it isn't too chilling, were these spirits moving aimlessly or lost or in any sort of pattern? My dad had an OOBE when he was in the hospital and I wasn't at all surprised that he could experience it at the time. It seemed normal to me at the time his description of himself as he was hovering over his body while the doctor was working on him. I will look into more hospital accounts with patients and the number of occurrences.
There maybe some possible explanation for the 'tether' people have between their body and spirit when they are hovering/traveling/flying/in some other realm. I also believe the time experienced in an deep OOB state can be different than time in this realm. But there is also a subjective interpretation of time also.
I had a very intense OOBE experience when I was extremely tired once. How I got tired involved walking around lost all day in a town I was unfamiliar with and hitching a ride home. Well, I got home in the late hours and a short time after I collapsed on my bed. (KIM I was living in an older Victorian era house with a tall ceiling at the time.) Anyway, when I was OOB, I was spinning around the top third of the room like some sort of ceiling fan. Spinning so fast, I saw the light entering my room from the side windows every time I turned that corner of the room. Like a bird trapped in a small room, I kept spinning in that circle till I awoke and snapped back into my body.