Out of Body Experiences
Out of Body Experiences (OBEs) are a state of mind which often occurs as a result of near death experiences or psychedelics use (most prominently ketamine and DMT).
OBEs have been well-documented for centuries. One of the first recorded instances was a report from the French otologist Pierre Bonnier in 1905 which reported a patient "divided into two persons, one who had not changed posture and another new person on his right, looking somewhat outwardly. Then, the two somatic individuals approached each other, merged, and the vertigo disappeared."
Whilst OBEs seem to pull consciousness fully from the body, a lesser form, of this seems to be depersonalization / derealisation. A suggested evolutionary rationale for this mechanism is that OBEs tend to occur pre or during traumatic events, suggesting OBEs are used almost as an ejector seat of consciousness to avoid long term effects of psychological trauma.