case a wish realization is because it is a product of the Unc., which knows no other aim in its activity but the fulfillment of wishes, and which has no other forces at its disposal but wish-feelings. If we avail ourselves for a moment longer of the right to elaborate from the dream interpretation such far-reaching psychological speculations, we are in duty bound to demonstrate that we are thereby bringing the dream into a relationship which may also comprise other psychic structures. If there exists a system of the Unc. — or something sufficiently analogous to it for the purpose of our discussion — the dream cannot be its sole manifestation; every dream may be a wish-fulfillment, but there must be other forms of abnormal wish-fulfillment beside this of dreams.

Indeed, the theory of all psychoneurotic symptoms