4. At one time the objective value of dream research was called into question by the observation that patients undergoing analysis accommodate the content of their dreams to the favorite theories of their physicians, so that some dream predominantly of sexual impulses, others of the desire for power and still others even of rebirth (W. Stekel). The weight of this observation is diminished by the consideration that people dreamed before there was such a thing as a psychoanalytic treatment to influence their dreams, and that those who are now undergoing treatment were also in the habit of dreaming before the treatment was commenced. The meaning of this novel discovery can soon be recognized as a matter of course and as of no consequence for the theory of the dream. Those day-remnants which give rise to the dream are the overflow from the strong interest of the waking life. If the remarks of the physician and the stimuli which he gives have become significant to the patient under analysis, then they become a part of the day's remnants, can serve as psychic stimuli for the formation of a dream along with other, emotionally-charged, unsolved interests of the day, and operate much as do the somatic stimuli which act upon the sleeper during his sleep. Just like these other incitors of the dream, the sequence of ideas which the physician sets in motion may appear in the manifest content, or may be traced in the latent content of the dream. Indeed, we know that one can produce dreams experimentally, or to speak more accurately, one can insert into the dream a part of the dream material. Thus the analyst in influencing his patients, merely plays the role of an experimenter in the manner of Mourly Vold, who places the limbs of his subjects in certain positions. One can often influence the dreamer as to the _subject-matter_ of his dream, but one can never influence _what he will dream_ about it. The mechanism of the dream-work and the unconscious wish that is hidden in the dream are beyond the reach of all foreign influences. We already realized, when we evaluated the dreams caused by bodily stimuli, that the peculiarity and self-sufficiency of the dream life shows itself in the reaction with which the dream retorts to the bodily or physical stimuli which are presented. The statement here discussed, which aims to throw doubt upon the objectivity of dream research, is again based on a confusion--this time of the whole dream with the dream material.