Mental life is divided into two levels, the unconscious and the conscious. The unconscious, in turn, has two different levels, the unconscious proper and the preconscious.
The (id) unconscious contains all those drives, urges, or instincts that are beyond our awareness but that nevertheless motivate most of our words, feelings, and actions.
Freud believed that a portion of our unconscious originates from the experiences of our early ancestors that have been passed on to us through hundreds of generations of repetition, this is the phylogeneticendowment.
The preconscious level of the mind contains all those elements that are not conscious but can become conscious either quite readily or with some difficulty (superego)
Conscious. The first is from a perceptualconscious system, which is turned toward the outer world and acts as a medium for the perception of external stimuli.
The second source of conscious elements is from within the mental structure and includes nonthreatening ideas from the preconscious as well as menacing but well-disguised images from the unconscious.
Das Es - Id serves the pleasure principle.
Das Ich - Ego is governed by the reality principle.
Uberich - super ego is governed by moralistic and idealistic principles.
Neurotic anxiety is defined as apprehension about an unknown danger. The feeling itself exists in the ego, but it originates from id impulses.
The second type of anxiety, moral anxiety, stems from the conflict between the ego and the superego.
The third type of anxiety, realistic anxiety, is closely related to fear.