Moreover, inversion or transformation into an opposite is one of the favourite methods of representation, and one of the methods most capable of varied application which the dream activity possesses. Its first function is to create the fulfilment of a wish with reference to a definite element of the dream-thoughts. “If it were only just the other way!” is often the best expression of the relation of the ego to a disagreeable recollection. But inversion becomes extraordinarily useful for the purposes of the censor, for it brings about in the material represented a degree of disfiguration which all but paralyses our understanding of the dream. For this reason it is always permissible, in cases where the dream stubbornly refuses to yield its meaning, to try the inversion of definite portions of its manifest content, whereupon not infrequently everything becomes clear. Besides this inversion, the subject-matter inversion in temporal relation is not to be overlooked. A frequent device of dream disfigurement consists in presenting the final issue of an occurrence or the conclusion of an argument at the beginning of the dream, or in supplying the premises of a conclusion or the causes of an effect at the end of it. Any one who has not considered this technical method of dream disfigurement stands helpless before the problem of dream interpretation.[DW] Indeed in some cases we can obtain the sense of the dream only by subjecting the dream content to manifold inversion in different directions. For example, in the dream of a young patient suffering from a compulsion neurosis, the memory of an infantile death-wish against a dreaded father was hidden behind the following words: _His father upbraids him because he arrives so late._ But the context in the psychoanalytic treatment and the thoughts of the dreamer alike go to show that the sentence must read as follows: _He is angry at his father_, and, further, that his father is always coming home _too early_ (_i.e._ too soon). He would have preferred that his father should not come home at all, which is identical with the wish (see page 219) that his father should die. As a little boy the dreamer was guilty of sexual aggression against another person while his father was away, and he was threatened with punishment in the words: “Just wait until father comes home.”