The paranoiac's delusional system inevitably brings him in conflict with his environment, but his feeling of being persecuted is less the result of this conflict with an external situation than of his own inner conflict. He convinces himself that it is the other, or others, not he, who is the author of this hatred. He is the innocent victim of their malice. This phenomenon of "projection and displacement" has received considerable attention in analytical psychology. Freud, in the book, _Totem and Taboo_, shows the role which projection plays in the primitive man's fear of demons. The demons are of course the spirits of the dead. But how comes it that primitive people fear these spirits, and attribute to them every sort of evil design against the living? To quote Freud: When a wife loses her husband, or a daughter her mother, it not infrequently happens that the survivor is afflicted with tormenting scruples, called "obsessive reproaches," which raise the question whether she herself has not been guilty, through carelessness or neglect, of the death of the beloved person. No recalling of the care with which she nursed the invalid, or direct refutation of the asserted guilt, can put an end to the torture, which is the pathological expression of mourning and which in time slowly subsides. Psychoanalytic investigation of such cases has made us acquainted with the secret mainspring of this affliction. We have ascertained that these obsessive reproaches are in a certain sense justified.... Not that the mourner has really been guilty of the death or that she has really been careless, as the obsessive reproach asserts; but still there was something in her, a wish of which she was unaware, which was not displeased with the fact that death came, and which would have brought it about sooner had it been strong enough. The reproach now reacts against this unconscious wish after the death of the beloved person. Such hostility, hidden in the unconscious behind tender love, exists in almost all cases of intensive emotional allegiance to a particular person; indeed, it represents the classic case, the prototype of the ambivalence of human emotions....