situation. The other girls would like to have a secret love affair too, and under the influence of a sense of guilt they also accept the pain involved in it. It would be wrong to suppose that they take on the symptom out of sympathy. On the contrary, the sympathy only arises out of the identification, and this is proved by the fact that infection or imitation of this kind takes place in circumstances where even less pre-existing sympathy is to be assumed than usually exists between friends in a girls' school. One ego has perceived a significant analogy with another upon one point—in our example upon a similar readiness for emotion; an identification is thereupon constructed on this point, and, under the influence of the pathogenic situation, is displaced on to the symptom which the one ego has produced. The identification by means of the symptom has thus become the mark of a point of coincidence between the two egos which has to be kept repressed.
What we have learned from these three sources may be summarised as follows, first, identification is the original form of emotional tie with an object; secondly, in a regressive way it becomes a substitute for a libidinal object tie, as it were by means of the introjection of the object into the ego; and thirdly, it may arise with every new perception of a common quality shared with some other person who is not an object of the sexual instinct. The more important
