This discovery of Breuer's was not the result of a speculation, but of a felicitous observation made possible by the coöperation of the patient. You should therefore not trouble yourself to find things you already know to which you can compare these occurrences, rather you should recognize herein a new fundamental fact which in itself is capable of much wider application. Toward this further end permit me to go over this ground again in a different way.
The symptom develops as a substitution for something else that has remained suppressed. Certain psychological experiences should normally have become so far elaborated that consciousness would have attained knowledge of them. This did not take place, however, but out of these interrupted and disturbed processes, imprisoned in the unconscious, the symptom arose. That is to say, something in the nature of an interchange had been effected; as often as therapeutic measures are successful in again reversing this transposition, psychoanalytic therapy solves the problem of the neurotic symptom.
Accordingly, Breuer's discovery still remains the foundation of psychoanalytic therapy. The assertion that the symptoms disappear when one has made their unconscious connections conscious, has been borne out by all subsequent research, although the most extraordinary and unexpected complications have been met with in its practical execution. Our therapy does its work by means of changing the unconscious into the conscious, and is effective only in so far as it has the opportunity of bringing about this transformation.
Now we shall make a hasty digression so that you do not by any chance imagine that this therapeutic work is too easy. From all we have learned so far, the neurosis would appear as the result of a sort of ignorance, the incognizance of psychological processes that we should know of. We would thus very closely approximate the well-known Socratic teachings, according to which evil itself is the result of ignorance. Now the experienced physician will, as a rule, discover fairly readily what psychic impulses in his several patients have remained unconscious. Accordingly it would seem easy for him to cure the patient by imparting this knowledge to him and freeing him of his ignorance. At least the part played by the unconscious meaning of the symptoms could easily be discovered in this manner, and it would only be in dealing with the relationship of the symptoms to the experiences of the patient that the physician would be handicapped. In the face of these experiences, of course, he is the ignorant one of the two, for he did not go through these experiences, and must wait until the patient remembers them and tells them to him. But in many cases this difficulty could be readily overcome. One can question the relatives of the patient concerning these experiences, and they will often be in a position to point out those that carry any traumatic significance; they may even be able to inform the analyst of experiences of which the patient knows nothing because they occurred in the very early years of his life. By a combination of such means it would seem that the pathogenic ignorance of the patient could be cleared up in a short time and without much trouble.