Hawkins had mentioned in one of his books how the spiritual definition of 'consciousness' is different than the medical definition of it.
The former is what you are and what composes All That Is whereas the latter is something that the "me" can lose. ie. "He lost consciousness and is now in bed unconscious."
Does anyone know exactly what happens when one loses consciousness in the medical sense?
I'm reading Nisargadatta's book 'I Am That' right now and Nisargadatta mentioned how you can never know yourself as non-existing or unconscious. The questioner interjected that just because you don't remember, that doesn't disprove the ability for one to be unconscious, to which Nisargadatta suggests the questioner to turn away from the experiencer and towards the experiencer, the 'I am.'
I'll admit this is just mental entertainment, sure, but it'd be interesting to know on what level consciousness exists when the self is unconscious. There seems to be no memory during this process, but is consciousness aware of the Self, the self, or what?
Any ideas?

. I remember Hawkins saying that you could suddenly rise up in LOC and be faced with certain dualities like that (existence vs non-existence).