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An ambitious attempt to explain all mental phenomena is embodied in this small book. "Suggestion" is considered by the author to be one of the most important concepts in psychology. The term recurs frequently in the text, and is used to account for most mental reactions, both normal and abnormal. Thus, the author says that "negativism is unrestrained negative suggestibility" (p. 125). What precisely he means by suggestion or "suggestional activities" does not become entirely clear. He seems to regard it as a sort of physiologic process, as when he says that "the progress of suggestion is the progress of an impulse through synapses or nervous tissue" (p. 148).
The author is apparently much influenced by a dream experience which he had in 1930. He dreamed of cavalry men slashing with sharp, cutting sabers. When he awoke, he was conscious of "acutely cold shoulder tips" (p. 20). He seems to