Every thought of the physician moves in a world the structure of which is determined by the thought forms of cause and effect. He knows the effect which he wants to produce; it is the restitution of the organic equilibrium. He studies the causes which can secure that end. And again the disturbance of the equilibrium itself, the disease, is for him an effect which he seeks to understand by an analysis of the preceding causes. The means which he applies can therefore be valued only in reference to their efficiency; no other point of view belongs to his world. The religiously valuable may be indifferent or even undesirable in the interplay of causes, and the morally indifferent may be most important for the physician's interests. The religious emotion accordingly has to stand in line with any other mental excitement or with a hundred physical means which the laboratory and the drug store supply. The physician will welcome the methods of treatment without reference to metaphysical systems or to religious beliefs. To him it is an empirical fact that many disturbances of mind and body which interfere with the equilibrium of life can be repaired by influences on certain psychophysical organs. A part of these repairing influences he finds in the sense stimuli, for instance, of spoken or written words which reach the brain and awaken associative and reactive processes. He finds further that these influences can be reenforced in their effectiveness by certain general conditions of the nervous system and again finds that these can be secured partly by sense impressions, and once more especially by words.