the primary form of the psychic apparatus which has been abandoned as
inexpedient. What once ruled in the waking state when the psychic life
was still young and unfit seems to have been banished into the sleeping
state, just as we see again in the nursery the bow and arrow, the
discarded primitive weapons of grown-up humanity. _The dream is a
fragment of the abandoned psychic life of the child._ In the psychoses
these modes of operation of the psychic apparatus, which are normally
suppressed in the waking state, reassert themselves, and then betray
their inability to satisfy our wants in the outer world.

The unconscious wish-feelings evidently strive to assert themselves
during the day also, and the fact of transference and the psychoses
teach us that they endeavor to penetrate to consciousness and dominate
motility by the road leading through the system of the foreconscious. It
is, therefore, the censor lying between the Unc. and the Forec., the
assumption of which is forced upon us by the dream, that we have to
recognize and honor as the guardian of our psychic health. But is it not
carelessness on the part of this guardian to diminish its vigilance
during the night and to allow the suppressed emotions of the Unc. to
come to expression, thus again making possible the hallucinatory
regression? I think not, for when the critical guardian goes to
rest--and we have proof that his slumber is not profound--he takes care
to close the gate to motility. No matter what feelings from the
otherwise inhibited Unc. may roam about on the scene, they need not be
interfered with; they remain harmless because they are unable to put in
motion the motor apparatus which alone can exert a modifying influence
upon the outer world. Sleep guarantees the security of the fortress
which is under guard. Conditions are less harmless when a displacement
of forces is produced, not through a nocturnal diminution in the
operation of the critical censor, but through pathological enfeeblement