The Christian scientist would doubtless say that the clay and the subsequent washing in the Pool of Siloam did no good, except as they acted through the mind. This may be true; but in either case it teaches a valuable lesson, which it would be well for all classes of mental healers to remember. If the clay had a curative effect, it shows that the Master did not disdain to employ material remedies as an auxiliary to his healing power. If, on the other hand, it possessed no curative power, it shows that the Great Healer did not hesitate to employ any legitimate means at hand to confirm and increase the faith of the patient. But this is a digression which pertains rather to the general subject of mental healing than to that of self-healing, which we are discussing. It is believed that the few simple rules herein laid down will enable any one of ordinary intelligence to become proficient, by a little practice, in the science of self-healing. It is not a mere theory, without practice, which has been here developed. It has been demonstrated over and over again to be eminently practical, not only as a means of healing disease, but as a means of warding off its encroachments. Indeed, its chief value will eventually be found to consist in the almost unlimited power which it gives one to protect himself from contracting disease. To do that it is only necessary to hold one's self in the mental attitude of denying the power of disease to obtain the mastery over him. When the patient recognizes the first symptoms of approaching illness, he should at once commence a vigorous course of therapeutic auto-suggestion. He will find prevention much easier than cure; and by persistently following such a course he will soon discover that he possesses a perfect mastery over his own health. In this connection it must not be forgotten that the method of healing during sleep is as applicable to self-healing as it is to healing others. Indeed, perfect rest and recuperative slumber can be obtained under almost any circumstances at the word of command. Dreams can be controlled in this way. If one is troubled by distressing or harassing dreams, from whatever cause, he can change their current, or prevent them altogether, by energetically commanding his subjective mind to do so. It is especially efficacious for this purpose to direct his subjective mind to employ itself in healing some sick friend. If one habitually does this at the time of going to sleep, he will not only be certain to obtain recuperative sleep for himself, but he will procure that contentment and peace of mind which always result from a consciousness of doing good to his fellow-creatures. The exercise of the power to heal in this way is never a tax upon the vital energies of the healer, but always redounds to his own benefit as well as to that of the patient. The reason of this is obvious. The normal condition of the subjective mind during the sleep of the body and the quiescence of