By the mastery of this spirit diseases are cured, age is mastered, even death is conquered. When this spirit is lacking, intelligence, joy and rest are lacking; and when there is this spirit, there is hope, there is joy, there is rest, because it is the nature of this spirit to hold together the body of atoms and vibrations. Comfort lies in its being held, discomfort when that spirit is not sufficient to hold the body intact. Thus it is the lack of this spirit that is the cause of a great many diseases. By the development of this spirit in himself the healer can give a part of his spirit to another, and that becomes the best source of healing.