Id, ego, and super-ego

Freud devided man's personality into three parts: the Id, the ego, and the super-ego.
The Id represents the sum total of instinctual desires, and at the same time, since most of them are not permitted to arrive at the level of awareness, it can be identified with the "unconscious." The Ego, representing man's organized personality inasmuch as it observes reality and has the function of realistic appreciation, at least as far as survival is concerned, may be said to represent "consciousness."  The super-ego, the internalization of father's (and society's) commands and prohibitions, can be both conscious and unconscious, and hence does not lend itself to being identified with the unconscious or the conscious respectively.