From being in love to hypnosis is evidently only a short step. The respects in which the two agree are obvious. There is the same humble subjection, the same compliance, the same absence of criticism, towards the hypnotist just as towards the loved object. There is the same absorption of one's own initiative; no one can doubt that the hypnotist has stepped into the place of the ego ideal. It is only that everything is even clearer and more intense in hypnosis, so that it would be more to the point to explain being in love by means of hypnosis than the other way round. The hypnotist is the sole object, and no attention is paid to any but him. The fact that the ego experiences in a dream-like way whatever he may request or assert reminds us that we omitted to mention among the functions of the ego ideal the business of testing the reality of things.[49] No wonder that the ego takes a perception for real if its reality is vouched for by the mental faculty which ordinarily discharges the duty of testing the reality of things. The complete absence of tendencies which are uninhibited in their sexual aims contributes further towards the extreme purity of the phenomena. The hypnotic relation is the devotion of someone in love to an unlimited degree but with sexual satisfaction excluded; whereas in the case of being in love this kind of satisfaction is only temporarily kept back, and remains in the background as a possible aim at some later time.

But on the other hand we may also say that the hypnotic relation is (if the expression is permissible) a group formation with two members. Hypnosis is not a good object for comparison with a group formation, because it is truer to say that it is identical with it. Out of the complicated fabric of the group it isolates one element for us—the behaviour of the individual to the leader. Hypnosis is distinguished from a group formation by this limitation of number, just as it is distinguished from being in love by the absence of directly sexual tendencies. In this respect it occupies a middle position between the two.

It is interesting to see that it is precisely those sexual tendencies that are inhibited in their aims which achieve such lasting ties between men. But this can easily be understood from the fact that they are not capable of complete satisfaction, while sexual tendencies which are uninhibited in their aims suffer an extraordinary reduction through the discharge of energy every time the sexual aim is attained. It is the fate of sensual love to become extinguished when it is satisfied; for it to be able to last, it must from the first be mixed with purely tender components—with such, that is, as are inhibited in their aims—or it must itself undergo a transformation of this kind.

Hypnosis would solve the riddle of the libidinal constitution of groups for us straight away, if it were not that it itself exhibits some features which are not met by the rational explanation we have hitherto given of it as a state of being in love with the directly sexual tendencies excluded. There is still a great deal in it which we must recognise as unexplained and mystical. It contains an additional element of paralysis derived from the relation between someone with superior power and someone who is without power and helpless—which may afford a transition to the hypnosis of terror which occurs in animals. The manner in which it is produced and its relationship to sleep are not clear; and the puzzling way in which some people are subject to it, while others resist it completely, points to some factor still unknown which is realised in it and which perhaps alone makes possible the purity of the attitudes of the libido which it exhibits. It is noticeable that, even when there is complete suggestive compliance in other respects, the moral conscience of the person hypnotized may show resistance. But this may be due to the fact that in hypnosis as it is usually practised some knowledge may be retained that what is happening is only a game, an untrue reproduction of another situation of far more importance to life.

But after the preceding discussions we are quite in a position to give the formula for the libidinal constitution of groups: or at least of such groups as we have hitherto considered, namely, those that have a leader and have not been able by means of too much 'organisation' to acquire secondarily the characteristics of an individual. A primary group of this kind is a number of individuals who have substituted one and the same object for their ego ideal and have consequently identified themselves with one another in their ego. This condition admits of graphic representation:

IX
THE HERD INSTINCT

We cannot for long enjoy the illusion that we have solved the riddle of the group with this formula. It is impossible to escape the immediate and disturbing recollection that all we have really done has been to shift the question on to the riddle of hypnosis, about which so many points have yet to be cleared up. And now another objection shows us our further path.

It might be said that the intense emotional ties which we observe in groups are quite sufficient to explain one of their characteristics—the lack of independence and initiative in their members, the similarity in the reactions of all of them, their reduction, so to speak, to the level of group individuals. But if we look at it as a whole, a group shows us more than this. Some of its features—the weakness of intellectual ability, the lack of emotional restraint, the incapacity for moderation and delay, the inclination to exceed every limit in the expression of emotion and to work it off completely in the form of action—these and similar features, which we find so impressively described in Le Bon, show an unmistakable picture of a regression of mental activity to an earlier stage such as we are not surprised to find among savages or children. A regression of this sort is in particular an essential characteristic of common groups, while, as we have heard, in organized and artificial groups it can to a large extent be checked.