Psyche

The human psyche (personality) has more than one aspect.
Freud’s personality theory (1923) saw the psyche structured into three parts (i.e., tripartite), the id, ego, and superego, all developing at different stages in our lives.

The id is the primitive and instinctual part of the mind that contains sexual and aggressive drives and hidden memories, the super-ego operates as a moral conscience, and the ego is the realistic part that mediates between the desires of the id and the super-ego.