I have seen in the East a man lifting a heavy stone on one finger. One might think: how can a man's little finger - these fine bones - stand such a heavy weight? It is the power of will alone which sustains the heavy stone, the finger is only an excuse. I have seen myself those who experiment in the field of spirit and matter jumping into a raging fire and coming out safely, cutting the muscles of their body and healing them instantly. It is not a story that mystics know how to levitate; the demonstration of this has been seen by thousands of people in India. I do not mean to say that this is something worth learning or following, I only wish to tell you what can be accomplished by the power of will. And in order to obtain the reign of will over the physical body the first thing necessary is physical control.