In German: das Es, Ich, and Über-Ich, (“the it”, “I”, and “over-I”)
ID
The unconscious force of bodily needs, impulses, desire (libido, aggressiveness). Related to the survival instinct.
Pleasure principle - seeking pleasure and avoiding pain to satisfy biological and psychological needs
Ego
Mediates between the ID and Super-Ego.
Reality Principle - assessing the reality and acting accordingly
Super-Ego
Internalizing the social norms we got from society, parents, any authoritive figures
Thus a child’s super-ego is in fact constructed on the model not of its parents but of its parents’ super-ego; the contents which fill it are the same and it becomes the vehicle of tradition and of all the time-resisting judgments of value which have propagated themselves in this manner from generation to generation.
Thus, it is responsible for the feelings of shame and guilt when we deviate from these cultural standards.