Religion is an illusion and it derives its strength from the fact that it falls in with our instinctual desires. - Sigmund Freud

In this way the ego detaches itself from the external world. It is more correct to say: Originally the ego includes everything, later it detaches from itself the external world. The ego-feeling we are aware of now is thus only a shrunken vestige of a far more extensive feeling - a feeling which embraced the universe and expressed an inseparable connection of the ego with the external world.

Cruel though it may sound, we must see to it that the patient's suffering, to a degree that is in some way or other effective, does not come to an end prematurely. If, owing to the symptoms having been taken apart and having lost their value, his suffering becomes mitigated, we must re-instate it elsewhere in the form of some appreciable privation; otherwise we run the danger of never achieving any improvements except quite insignificant and transitory ones

In general we are reminded that the word heimlich is not unambiguous, but belongs to two sets of ideas, which, without being contradictory, are yet very different: on the one hand it means what is familiar and agreeable, and on the other, what is concealed and kept out of sight. Unheimlich is customarily used, we are told, as the contrary only of the first signification of heimlich, and not of the second. [...] On the other hand, we notice that Schelling says something which throws quite a new light on the concept of the Unheimlich, for which we were certainly not prepared. According to him, everything is unheimlich that ought to have remained secret and hidden but has come to light.