Both dreams and neurotic dream-states have as their function the avoidance of displeasure, but the dream-states also serve to provide a positive pleasure gain.
A person who suffers from severe locomotor anxiety finds himself in an almost permanent state of mental tension. He wakes in the morning with the anxious expectation of having to go out somewhere in the course of the day.
Even in my first analysis of a depressive psychosis, I was immediately struck by its structural similarity with obsessional neurosis.
Psychoanalytic investigation has shown that in mental patients excessive affection often turns to violent hostility.
Whereas the melancholic exhibits a state of general inhibition, in the manic patient even normal inhibitions of the instincts are partly or wholly abolished.