long-continued dwelling upon the one thought he ends by identifying himself with some great historical character whom he specially admires. If he is afflicted with some nervous disorder which causes him to pass easily and habitually into the subjective condition, the process of fastening the hallucination upon his mind is easy and rapid, and he is soon a fit subject for a lunatic asylum. But, whatever physical condition may be a necessary factor in producing such hallucinations, the fact remains that auto-suggestion is the primary cause. The subject is introduced here merely to illustrate the power and potency of auto-suggestion, even when the suggestion is against the evidence of reason and sense. It must not be forgotten that an auto-suggestion which produces a hallucination such as has been described, operates on the lines of strongest resistance in nature. If, therefore, such results can be produced when opposed by the strongest instincts of our nature, how much easier must it be to produce equally wonderful results when operating in harmony with those instincts, and, hence, on the lines of least resistance. It is self-evident, therefore, that auto-suggestion can be employed to great advantage for therapeutic purposes. Indeed, the power of self-help is the most important part of mental therapeutics. Without it the science is of comparatively little value or benefit to mankind. With it goes the power to resist disease,--to prevent sickness, as well as to cure it. The old axiom, that "an ounce of prevention is worth a pound of cure," holds good in psycho-therapeutics as well as in material remedies, and he who obtains the power to hold himself in the mental attitude which enables him to resist the encroachments of disease has mastered the great secret of mental medicine. That it can be done by any one of ordinary intelligence, is a fact which has been demonstrated beyond question. The best workers in the field of Christian science give more attention to teaching their pupils and patients how to help themselves than they do to instructing them how to help others. And this is the secret of the permanence of their cures, as has been fully explained in other chapters of this book. The process by which it can be done is as simple as are the laws which govern the subject-matter. The patient should bear in mind the fundamental principles which lie at the foundation of mental therapeutics,-- 1. The subjective mind exercises complete control over the functions and sensations of the body. 2. The subjective mind is constantly amenable to control by the suggestions of the objective mind. 3. These two propositions being true, the conclusion is obvious, that the functions and sensations of the body can be controlled by suggestions of the objective mind.