I don't think that "consciousness has 'a life of its own'" beyond its embodiment and continuous embeddedness and activity {enaction} within the 'world' we dwell in here on earth, within its and our temporality and the history of our species' existence. Our individual consciousnesses are always developing in the course of our lifetimes. When I experienced the spontaneous OBE I have described several times here, what I experienced was finding my consciousness/my awareness relocated to a far corner of the room in which I was reading, close to the ceiling, and seeing my body from above and behind, still seated at the desk apparently reading.
But I was no longer reading there. I was observing my body as a 'thing', inert and unalive, frozen for the time being, and I was not concerned about it as 'mine'. I paid attention, instead, to the marvel of this relocation of my awareness and the things that happened as my awareness, consciousness, mind moved slowly along the ceiling to a position directly across the room from my body (still seated at the desk, my blue Harris Tweed coat still draped over the back of the chair on which I sat.
I also experienced a voice (an adult female voice I didn't recognize) suddenly speaking from a position to my left, within my consciousness, saying first "she's in a mess, but this is no big deal" and then leaving. At that point my consciousness returned to its usual location in my body. I was suddenly in my body and realized that I had just had a very unusual experience I could not account for, packed up my books, and walked upstairs to the university counseling office, located in the same building I had been working in.
I'd never been inside that office before but passed by it often and thus knew where it was. I was seen almost immediately by the head of the department who called a neurologist near the campus and asked him to see me. I got to that office and was examined by that doctor who said he could see no neurological explanation for the OBE and prescribed a tranquilizer.