because, if the discharge of presentation should be left to itself, it
would develop an affect in the Unc. which originally bore the character
of pleasure, but which, since the appearance of the repression, bears
the character of pain. The aim, as well as the result, of the
suppression is to stop the development of this pain. The suppression
extends over the unconscious ideation, because the liberation of pain
might emanate from the ideation. The foundation is here laid for a very
definite assumption concerning the nature of the affective development.
It is regarded as a motor or secondary activity, the key to the
innervation of which is located in the presentations of the Unc. Through
the domination of the Forec. these presentations become, as it were,
throttled and inhibited at the exit of the emotion-developing impulses.
The danger, which is due to the fact that the Forec. ceases to occupy
the energy, therefore consists in the fact that the unconscious
excitations liberate such an affect as--in consequence of the repression
that has previously taken place--can only be perceived as pain or
anxiety.

This danger is released through the full sway of the dream process. The
determinations for its realization consist in the fact that repressions
have taken place, and that the suppressed emotional wishes shall become
sufficiently strong. They thus stand entirely without the psychological
realm of the dream structure. Were it not for the fact that our subject
is connected through just one factor, namely, the freeing of the Unc.
during sleep, with the subject of the development of anxiety, I could
dispense with discussion of the anxiety dream, and thus avoid all
obscurities connected with it.

As I have often repeated, the theory of the anxiety belongs to the
psychology of the neuroses. I would say that the anxiety in the dream is