Under other circumstances the ideas associated with the suppressed complexes tend to have a dominating and controlling place in the life of the individual. All our ideas that have a sentimental setting are of this character. We are all of us a little wild and insane upon certain subjects or in regard to certain persons or objects. In such cases a very trivial remark or even a gesture will fire one of these loaded ideas. The result is an emotional explosion, a sudden burst of weeping, a gust of violent, angry, and irrelevant emotion, or, in case the feelings are more under control, merely a bitter remark or a chilling and ironical laugh. It is an interesting fact that a jest may serve as well to give expression to the "feelings" as an expletive or any other emotional expression. All forms of fanaticism, fixed ideas, phobias, ideals, and cherished illusions may be explained as the effects of mental mechanisms created by the suppressed complexes.
From what has been said we are not to assume that there is any necessary and inevitable conflict among ideas. In our dreams and day-dreams, as in fairyland, our memories come and go in the most disorderly and fantastic way, so that we may seem to be in two places at the same time, or we may even be two persons, ourselves and someone else. Everything trips lightly along, in a fantastic pageant without rhyme or reason. We discover something of the same freedom when we sit down to speculate about any subject. All sorts of ideas present themselves; we entertain them for a moment, then dismiss them and turn our attention to some other mental picture which suits our purpose better. At such times we do not observe any particular conflict between one set of ideas and another. The lion and the lamb lie down peacefully together, and even if the lamb happens to be inside we are not particularly disturbed.
Conflict arises between memories when our personal interests are affected, when our sentiments are touched, when some favorite opinion is challenged. Conflict arises between our memories when they are connected with some of our motor dispositions, that is to say, when we begin to act. Memories which are suppressed as a result of emotional conflicts, memories associated with established motor dispositions, inevitably tend to find some sort of direct or symbolic expression. In this way they give rise to the symptoms which we meet in hysteria and psychasthenia—fears, phobias, obsessions, and tics, like stammering.
The suppressed complexes do not manifest themselves in the pathological forms only, but neither do the activities of the normal complexes give any clear and unequivocal evidence of themselves in ordinary consciousness. We are invariably moved to act by motives of which we are only partially conscious or wholly unaware. Not only is this true, but the accounts we give to ourselves and others of the motives upon which we acted are often wholly fictitious, although they may be given in perfect good faith.
A simple illustration will serve, however, to indicate how this can be effected. In what is called post-hypnotic suggestion we have an illustration of the manner in which the waking mind may be influenced by impulses of whose origin and significance the subject is wholly unaware. In a state of hypnotic slumber the suggestion is given that after awaking the subject will, upon a certain signal, rise and open the window or turn out the light. He is accordingly awakened and, at the signal agreed upon while he was in the hypnotic slumber but of which he is now wholly unconscious, he will immediately carry out the command as previously given. If the subject is then asked why he opened the window or turned out the light, he will, in evident good faith, make some ordinary explanation, as that "it seemed too hot in the room," or that he "thought the light in the room was disagreeable." In some cases, when the command given seems too absurd, the subject may not carry it out, but he will then show signs of restlessness and discomfort, just for instance as one feels when he is conscious that he has left something undone which he intended to do, although he can no longer recall what it was. Sometimes when the subject is not disposed to carry out the command actually given, he will perform some other related act as a substitute, just as persons who have an uneasy conscience, while still unwilling to make restitution or right the wrong which they have committed, will perform some other act by way of expiation.
Our moral sentiments and social attitudes are very largely fixed and determined by our past experiences of which we are only vaguely conscious.
"This same principle," as Morton Prince suggests, "underlies what is called the 'social conscience,' the 'civic' and 'national conscience,' 'patriotism,' 'public opinion,' what the Germans call 'Sittlichkeit,' the war attitude of mind, etc. All these mental attitudes may be reduced to common habits of thought and conduct derived from mental experiences common to a given community and conserved as complexes in the unconscious of the several individuals of the community."
Sentiments were first defined and distinguished from the emotions by Shand, who conceived of them as organizations of the emotions about some particular object or type of object. Maternal love, for example, includes the emotions of fear, anger, joy, or sorrow, all organized about the child. This maternal love is made up of innate tendencies but is not itself a part of original nature. It is the mother's fostering care of the child which develops her sentiments toward it, and the sentiment attaches to any object that is bound up with the life of the child. The cradle is dear to the mother because it is connected with her occupation in caring for the child. The material fears for its welfare, her joy in its achievements, her anger with those who injure or even disparage it, are all part of the maternal sentiment.
The mother's sentiment determines her attitude toward her child, toward other children, and toward children in general. Just as back of every sensation, perception, or idea there is some sort of motor disposition, so our attitudes are supported by our sentiments. Back of every political opinion there is a political sentiment and it is the sentiment which gives force and meaning to the opinion.
Thus we may think of opinions merely as representative of a psycho-physical mechanism, which we may call the sentiment-attitude. These sentiment-attitudes are to be regarded in turn as organizations of the original tendencies, the instinct-emotions, about some memory, idea, or object which is, or once was, the focus and the end for which the original tendencies thus organized exist. In this way opinions turn out, in the long run, to rest on original nature, albeit original nature modified by experience and tradition.