The aura of the successful physician and healer, in the presence of disease, will invariably show the presence of the bright, positive red in the aura, accompanied by the mental vibrations of strength, power and confidence, and the absence of fear. This in connection with the Auric Circle, which shall be described presently, will be of great value to healers, physicians, nurses, etc., as well as to those who are brought into intimate contact with sick persons. Of practically the same degree of importance, is the charging of the aura with the vibrations of mental protection, viz, the vibrations of orange, yellow and similar colors. These are the colors of intellect, you will remember, and when the aura is charged and flooded with them it acts as a protection against the efforts of others to convince one against his will, by sophistical arguments, plausible reasoning, fallacious illustrations, etc. It gives to one a sort of mental illumination, quickening the perceptive faculties, and brightening up the reasoning and judging powers, and finally, giving a sharp edge to the powers of repartee and answer. If you will assume the right positive mental attitude, and will flood your aura with the vibrations of the mental orange-yellow, the mental efforts of other persons will rebound from your aura, or, to use another figure of speech, will slip from it like water from the back of the proverbial duck. It is well to carry the mental image of your head being surrounded by a golden aura or halo, at such times--this will be found especially efficacious as a protective helmet when you are assaulted by the intellect or arguments of others. And, again, there is a third form of protective aura, namely protection of one's emotional nature--and this is highly important, when one remembers how frequently we are moved to action by our emotions, rather than by our intellect or reason. To guard one's emotions, is to guard one's very inmost soul, so to speak. If we can protect our feeling and emotional side, we will be able to use our reasoning powers and intellect far more effectively, as all know by experience. What color should we use in this form of auric protection? Can anyone be in doubt here, if he has read the preceding chapters? What is the emotional protective color?--why, blue, of course. Blue controls this part of the mind or soul, and by raising ourselves into the vibrations of positive blue, we leave behind us the lower emotions and feelings, and are transported into the higher realms of the soul where these low vibrations and influences cannot follow us. In the same way, the blue colored aura will act as an armor to protect us from the contagion of the low passions and feelings of others.