It is not only the influence of society and tradition that renders imagination-beliefs coercive to a savage; in the immature mind of the individual there are certain conditions favourable to their prevalence. (_a_) The process of imagination itself, the memory and the picture-thinking of savages, seems to be more vivid, sensuous, stable, more like perception than our own normally is. “The Australians,” says Spencer and Gillen, “have the most wonderful imagination.”[90] They often die of it; and so do Hindoo peasants, Maories, Fijians, Negroes and others, if they know they have been cursed or have broken a taboo. With the Melanesians, says Dr. Coddrington, thinking is like seeing;[91] and Dr. Rivers has confirmed this statement. Hence there is a tendency to accept imaginations as perceptions are accepted; and to believe in the efficacy of rites, because the mere performing of them with an imagined purpose makes their purpose seem to be accomplished. When a man of intense and excited imagination makes an image of an enemy, and stabs it, that his enemy may suffer, his action gratifies the impulse to stab, as if he wounded the enemy himself, and revenge seems to be a present fact. Similar intensity of imagination is found in civilised children—greater than in ordinary adults. Savages, again, seem to dream more vividly and convincingly than is usual amongst ourselves, and are said to be more liable to hallucinations. Physiological conditions of the immature brain (childish or savage), in which excitement does not rapidly spread through many associated neurones, may be the basis of the vividness of imagination, dreaming and hallucination.