A loss of all that one makes out to be reality.
Mentally questioning reality, for what it is.
Another world of reasoning.
Usualy experenced by hallucinogenic drugs, either Mushrooms (Psychobilin), Acid (LSD, 2C-I, 2C-E-B, etc etc) or trauma to the brain
It is the loss of apparent truths, and what MUST be taken as truth.
Sigmund Frued coined the word "Ego", he had something in mind that was far away from how the word is tossed about today.
As he classified, it is the epitimy one of the three mental states (Id, Ego, and the Superego) The Id being the primal area of consciousness, devloped as a child, only caring about itself and how to gratify any desire it has. (A baby crying, an infant screaming "MINE!" about things it's never seen before)
Out of the Id, the Ego grows as a person gets older. The Ego is how a normal "of age" human acts and thinks in everyday life, but it is based soley off of the Id, because the Id was the first state of consciousness to take in any information at all from the outside world. The Ego is not so selfishly seeking and recognizes that there is a larger picture, a world aside of itself; the Ego acts as censor to the Id, stopping and keeping in check ...