(6) Now, if one residual consciousness can be brought into a relationship of definite and serious purpose with another residual consciousness, the influence thus exerted will be stronger than any which can be exerted directly by the reason itself. To revert to our former illustrations, a monitor whose own character is receptive of the master’s ideals can exert on other children an influence greater than that of the master himself. (7) The reason of man, then, may be well able to convey clear instructions to his own residual consciousness, and send it to associate with, and work upon, some other residual consciousness. And if the instructions conveyed, and the work done, concern the curing of some ailment, a case of mental healing will be the result. Let A be the healer and B the patient; let _a_ and _b_ represent the residual consciousness of each of them; further, let A^1 be the rational intellect of A, and B^2 the seat of B’s disease. In that case the following diagram will illustrate the process: [Illustration] That is, A concentrates his intellect (A^1) on transmitting a message to his own submerged consciousness (_a_); this submerged consciousness works upon B’s submerged consciousness and stimulates it to curative action on the seat of B’s disease. Further, the best time for _a_ to thus work upon _b_ will be when A and B are both asleep. A will have concentrated the reason on the idea of helping B just before going to sleep. Mr. Hudson, in his ‘Psychic Phenomena,’ gives many illustrations of cures thus effected. (8) But the capacity of A to exert a strong and right influence must depend on the strength of his will and the clearness of his insight; and if he is a humble man, he will recognise his own weakness and ignorance. In proportion, then, to his affection for B, he wants to bring to bear on B a stronger force and a higher wisdom than his own. A few exceptionally strong and wise people may bring help, of themselves, to their friends in the manner described in the last section; but the majority, being conscious of their own limitations, will turn elsewhere for succour, i.e. will pray.