Not arguing the hallucinogen/dissociative labeling but wouldn't imagining the view from above your body count as seeing something that was generated entirely in your head? I mean...unless you were somehow actually floating above yourself which seems fairly unlikely (what with your eyes remaining in your head and all).
I don't know that it isn't a hallucinogen, but I've always heard that it's not.
Although, I wouldn't consider an out-of-body experience a hallucination, because it's not adding anything to the scene. I think it's more of a perspective shift, based on what you already know about yourself and your surroundings. I wonder if it could be experienced by someone who has (hypothetically) never looked at themselves in a mirror, or someone who is blindfolded and moved into a different setting that they were not previously familiar with.
I've experienced plenty of hallucinations, and the out-of-body experience from K was dramatically different for me. If felt more like a dream state, rather than a mostly normal state where my eyes were playing tricks on me (LSD and the like).
