Man is made of atoms gathered together around the intelligence, physical atoms and mental atoms which make his body and mind. The power which has gathered them and which controls them and which uses them for their best purpose is the will-power. When this power is absent the body and mind both go to pieces, broken by every jarring effect coming from whatever direction. This is the reason hidden under most of the illnesses and weaknesses; every mistake, failure, and every disappointment in life has this reason behind it: The lack of control, the lack of steadiness and strength against the disturbing influences which come from within and without.