Psycho-analytic research, which has already occasionally attacked the more difficult problems of the psychoses, has also been able to exhibit identification to us in some other cases which are not immediately comprehensible. I shall treat two of these cases in detail as material for our further consideration. The genesis of male homosexuality in a large class of cases is as follows. A young man has been unusually long and intensely fixated upon his mother in the sense of the Oedipus complex. But at last, after the end of his puberty, the time comes for exchanging his mother for some other sexual object. Things take a sudden turn: the young man does not abandon his mother, but identifies himself with her; he transforms himself into her, and now looks about for objects which can replace his ego for him, and on which he can bestow such love and care as he has experienced from his mother. This is a frequent process, which can be confirmed as often as one likes, and which is naturally quite independent of any hypothesis that may be made as to the organic driving force and the motives of the sudden transformation. A striking thing about this identification is its ample scale; it remoulds the ego in one of its important features--in its sexual character--upon the model of what has hitherto been the object. In this process the object itself is renounced--whether entirely or in the sense of being preserved only in the unconscious is a question outside the present discussion. Identification with an object that is renounced or lost as a substitute for it, introjection of this object into the ego, is indeed no longer a novelty to us. A process of the kind may sometimes be directly observed in small children. A short time ago an observation of this sort was published in the _Internationale Zeitschrift für Psychoanalyse_. A child who was unhappy over the loss of a kitten declared straight out that now he himself was the kitten, and accordingly crawled about on all fours, would not eat at table, etc.[41] Another such instance of introjection of the object has been provided by the analysis of melancholia, an affection which counts among the most remarkable of its exciting causes the real or emotional loss of a loved object. A leading characteristic of these cases is a cruel self-depreciation of the ego combined with relentless self-criticism and bitter self-reproaches. Analyses have shown that this disparagement and these reproaches apply at bottom to the object and represent the ego's revenge upon it. The shadow of the object has fallen upon the ego, as I have said elsewhere.[42] The introjection of the object is here unmistakably clear.