The reason why one person is hypnotizable and another not I could no more explain than others, and hence I could not start on a causal way towards the removal of the difficulties. I also observed that in some patients the obstacle was still more marked, as they even refused to submit to hypnosis. The idea then occurred to me that both cases might be identical, and that in both it might merely be an unwillingness. Those who entertain a psychic inhibition against hypnotism are not hypnotizable, it makes no difference whether they utter their unwillingness or not. It is not fully clear to me whether I can firmly adhere to this conception or not. It was, therefore, important to avoid hypnotism and yet to obtain the pathogenic reminiscences. This I attained in the following manner: On asking my patients during our first interview whether they remembered the first motive for the symptom in question, some said that they knew nothing, while others thought of something which they designated as an indistinct recollection, yet were unable to pursue it. I then followed Bernheim’s example of awakening the apparently forgotten impressions obtained during somnambulism (see the case of Miss Lucy). I urged them by assuring them that they did know it, and that they will recall it, etc., and thus some thought of something, while in others the recollections went further. I became still more pressing, I ordered the patient to lie down and voluntarily shut his eyes so as to “concentrate” his mind, causing thereby at least a certain similarity to hypnosis, and I then discovered that without any hypnosis there emerged new and retrospective reminiscences which probably belonged to our theme. Through such experiences I gained the impression that through urging alone it would really be possible to bring to light the definitely existing pathogenic series of ideas; and as this urging necessitated much exertion on my part, and showed me that I had to overcome a resistance, I, therefore, formulated this whole state of affairs into the following theory: _Through my psychic work I had to overcome a psychic force in the patient which opposed the pathogenic idea from becoming conscious_ (remembered). It then became clear to me that this must really be the same psychic force which assisted in the origin of the hysterical symptom, and at that time prevented the pathogenic idea from becoming conscious. What kind of effective force could here be assumed, and what motive could have brought it into activity? I could easily formulate an opinion, for I already had some complete analyses at my disposal in which I found examples of pathogenic, forgotten, and repressed ideas. From these I could judge the general character of such ideas. They were altogether of a painful nature, adapted to provoke the affects of shame, reproach, of psychic pain, and the feeling of injury; they were altogether of that kind which one would not like to experience and prefers to forget.