It becomes evident from even this brief description of the analytic procedure that we are dealing with a very complex and delicate material, and with a technique which needs to make definite use of all influences available for the help of the patient. It has long been recognized that the relation established between physician and patient has a great effect upon the medical assistance which he is able to render—in other words, if a confidence and personal regard developed in the patient towards the physician, the latter’s advice was just so much more efficacious. This personal feeling has been frankly recognized and made of distinct service in psychoanalytic treatment under the name of _transference_. It is through the aid of this definite relationship which must be established in the one being analyzed towards the analyst that it is possible to deal with the unconscious and organized resistances which so easily blind the individual and render the acceptance of the new valuations very difficult to the raw and sensitive soul. Freud’s emphasis upon the rôle of the sexual instinct in the production of the neurosis and also in its determining power upon the personality of the normal individual does not imply that he does not also recognize other determinants at the root of human conduct, as for instance, the instinct for preservation of life and the ego principle itself. But these motives are not so violently forbidden and repressed as the sexual impulse, and therefore, because of that repressive force and the strength of the impulse he considers this primary in its influence upon the human being. The importance of this instinct upon human life is clearly revealed by the great place given to it under the name of love in art, literature, poetry, romance and all beauty from the beginning of recorded time. Viewed in this light it cannot seem extraordinary that a difficulty or disturbance in this emotional field should produce such far-reaching consequences for the individual. The sexual impulse is often compared with that of hunger, and this craving and need lying in all humanity is called by Freud _libido_. THE OEDIPUS PROBLEM With further investigations into the nature of the repressed complexes a very astonishing situation was revealed. The parental influence on children is something so well recognized and understood that to call attention to it sounds much like a banality. However, here an extraordinary discovery was made, for in tracing out the feelings and emotions of adults it became evident that this influence was paramount not only for children but for adults as well; that the entire direction of lives was largely determined quite unconsciously by the parental associations, and that, although adults, the emotional side of their nature was still infantile in type and demanded unconsciously the infantile or childish relations.