The term phantom is used for an identification which has become a part of the personality. Depersonalization is brought about by the incorporation of a great many phantoms. Insufficient ego libido is invested in any one of them: they are thus grey and colourless and the ego cannot decide which one of these phantoms is to be acknowledged as its representative. In all cases of depersonalization observed something was wrong in the infantile relation to the father. Thus it later appears that the super-ego is responsible for the disintegration of personality.