But the work of the magnetic healer does not stop here, if he be well informed regarding his science. The educated healer realizing the potent effect of mental states upon physical conditions--of mental vibrations upon the physical nerve centers and organs of the body--endeavors to arouse the proper mental vibrations in the mind of his patient. Ordinarily, he does this merely by holding in his mind the corresponding desired mental state, and thus arousing similar vibrations in the mind of the patient. This of itself is a powerful weapon of healing, and constitutes the essence of mental healing as usually practiced. But there is a possible improvement even upon this, as we shall see in a moment. The advanced occultist, realizing the law of action and reaction in the matter of the auric colors, turns the same to account in healing work, as follows: He not only holds in his mind the strong feeling and thought which he wishes to transmit to the patient, but (fix this in your mind) he also pictures in his imagination the particular kind of color which corresponds with the feeling or thought in question. A moment's thought will show you that by this course he practically multiplies the effect. Not only do his own thought vibrations (1) set up corresponding vibrations in the mind of the patient, by the laws of thought transference, but (2) his thought of the certain colors will set up corresponding vibrations not only (a) in his own aura, and thence (b) to that of the patient, but will also (3) act directly upon the aura of the patient and reproduce the colors there, which (4) in turn will arouse corresponding vibrations in the mind of the patient, by the law of reaction. The above may sound a little complicated at first reading, but a little analysis will show you that it is really quite a simple process, acting strictly along the lines of Action and Reaction, which law has been explained to you in preceding chapters of this book. The vibrations rebound from mind to aura, and from aura to mind, in the patient, something like a billiard ball flying from one side of the table to another, or a tennis ball flying between the two racquets over the net. The principle herein mentioned may be employed as well in what is called "absent treatment" as in treatments where the patient is present. By the laws of thought transference, not only the thought but also the mental image of the appropriate astral color, is transmitted over space, and then, impinging on the mind of the patient, is transmitted into helpful and health-giving vibrations in his mind. The healer of any school of mental or spiritual healing will find this plan very helpful to him in giving absent as well as present treatments. I recommend it from years of personal experience, as well as that of other advanced occultists.