Energy system with a limited amount of energy.

If energy is blocked, it'll follow the path of least resistance.

People driven by sexual and aggresive drives.

Libido inhibitted by society

Id: pleasure principle- unconscious

Ego: reality principle- conscious

Superego: morality principle- conscious & unconscious.

*Constant conflict resulting in anxiety

1.Denial

2.Repression

3.Projection (to others)

Jung: libido general life energy/ collective unconscious/ introversion and extroversion

Erikson:8-stage development