It is practice rather than study that helps in controlling the nerves of the body, the rhythm of the circulation, the mechanism of the body. The adepts are able to stop every pulsation of the body at will, for a few seconds at a time. There have been experiments made by doctors verifying this power. However surprising it may seem for the external pulse to be controlled in this way, what would it seem like if we could see still more deeply into the life of the adept! The control of mind is so much greater; words can never explain it; one must experience it oneself. The control of the self means the control of everything.