Another technique for fending off suffering is the employment of the displacements of libido which our mental apparatus permits of and through which its function gains so much in flexibility. The task here is that of shifting the instinctual aims in such a way that they cannot come up against frustration from the external world.
Sigmund FreudThe defense against childish helplessness is what lends its characteristic features to the adult's reaction to the helplessness which he has to acknowledge - a reaction which is precisely the formation of religion.
Sigmund FreudWhen it happens that a person has to give up a sexual object, there quite often ensues an alteration of his ego which can only be described as a setting up of the object inside the ego, as it occurs in melancholia; the exact nature of this substitution is as yet unknown to us.
Sigmund Freud