Terence Mckenna - The Ego, The Outsider & Psychedelics

The ego is the organized part of the personality structure that includes defensive, perceptual, intellectual-cognitive, and executive functions. Conscious awareness resides in the ego, although not all of the operations of the ego are conscious. Originally, Freud used the word ego to mean a sense of self, but later revised it to mean a set of psychic functions such as judgement, tolerance, reality testing, control, planning, defence, synthesis of information, intellectual functioning, and memory.