person as its dominating element, and may induce a corresponding mood in the dream. This mood may be the result of the experiences and thoughts of the day, or it may be of somatic origin; in either case it will be accompanied by the chains of thought that correspond to it. The fact that in the one case this presentation content conditions the emotional inclination primarily, and that in the other case it is brought about secondarily by a disposition of feeling of somatic origin remains without influence upon the formation of the dream. This formation is always subject to the restriction that it can represent only a wish-fulfilment, and that it may put its psychic motive force at the service only of the wish. The mood that is actually present will receive the same treatment as the sensation which actually comes to the surface during sleep (cf. p. 198), which is either neglected or reinterpreted so as to signify a wish-fulfilment. Disagreeable moods during sleep become a motive force of the dream by actuating energetic wishes, which the dream must fulfil. The material to which they are attached is worked over until it finally becomes suitable for the expression of the fulfilled wish. The more intense and the more dominating the element of the disagreeable mood in the dream thought, the more surely will the wish-impulses that have been most rigorously suppressed take advantage of the opportunity to secure representation, for they find that the difficult part of the work necessary in securing representation has already been accomplished in that the repugnance is already actually in existence, which they would otherwise have had to produce by their own effort. With this discussion we again touch upon the problem of anxiety dreams, which we may regard as bounding the province of the dream activity.
(h) Secondary Elaboration.
We may at last proceed to an exposition of the fourth of the factors which take part in the formation of the dream.
If we continue the examination of the dream content, in the manner already outlined—that is, by testing striking occurrences as to their origin in the dream thoughts—we encounter elements which can be explained only by making an entirely
