QUOTE : In addition to the Self, Jung postulated archetypal components which play specific roles in the psychic development and social adjustment of everyone. These include the ego, persona, shadow, anima, and animus. Jung considered these to be archetypal structures which are built into the personal psyche in the form of complexes during the course of development. Each is a psychic organ operating in accordance with the biological principles of adaptation, homeostasis, and growth.