The activity of the subject, external and internal, is mediated and regulated by a psychic reflection of reality. What the subject sees in the object world are motives and goals, and conditions of his activity must be received by him in one way or another, presented, understood, retained, and reproduced in his memory; this applies also to processes of his activity and to the subject himself - to his condition, characteristics, and idiosyncrasies. Thus the analysis of activity leads us to the traditional themes of psychology. Now, however, the logic of the investigation is turned around: The problem of the appearance of psychic processes is turned into the problem of their origin, their elicitation by those social connections into which man enters in the object world.