Among these five aspects the first is the breath which is like the stem on the tree, and which one feels through the nostrils. By the purification, development and control of this breath all five aspects are developed. There are atoms in man's body which form a certain organ, which are more or less active in different rhythms according as the breath reaches them. The atoms which do not receive the proper breath remain undeveloped, and therefore are inactive. As the centers of the body are situated in the center of the whole mechanism, it is natural that in the average person the breath does not reach their innermost part as it ought to.