Interesting concept. I wonder if it has any thing to do with my two near-death experiences: Car accident in 1972 and wisdom teeth pulled also in 1972. Both times I floated above my body and was met by a "female person" and given a "Tour" or "Journey". It was interesting after the car accident and being taken about - it was kinda like a "Walk about". She showed me how infinite the world is - even inside a acorn (thats a world all to itself) and then I saw a strange man/creature in a tree and I asked her who he was, she told me His kind will appear in latter times and if I ever see his kind again I am not to stare back or he would attack and to continue on my path., she said they are very dark and vicious (all you could see was his eyes peering out from a dark cloak wrapped very tightly about his thin body= kinda reminded you of a vampire). She took me to some other places that I don't quite remember and then we went into a big white building (it was the hospital) and took me down the hallways saying I had to hurry or it would be too late, When we got to the room I was in I stood by my bed looking at my body . I asked "her" how I was suppose to get back in and she told me all I had to do was touch my arm... yeap that works.
The Wisdom Tooth Experience was weird, she appeared again but in the flesh behind the Dental assistants and when I asked why all the people - they looked at me like I was nuts because I even asked who (her & some others were) and they just looked at each other and said it was just the two of them. Well, skip the routine - I was floated above my dental chair watching all the commontion, watch the paramedics working on me and staying till my teeth were pulled. In the recovery room there was another gal recovering who thought I was dead and told me what had happen to me. That Dentist lost his license and was yelling at me never to come back when I left.
Then I had a "Vision Visit" couple years later... Yes... there is "another side" and its totally "light" and your body is also "light". We're Light Beings in our true form. Thats about all I can explain. So I'm always seeing things in my head and seeing strange worlds in my dreams. I know I Astral Travel because I've been places that It is so hard to explain in words. Sometimes drawing them (if I can) help give them substance like written words.
So you're right in your assumptions.