This work will take up the Yogi "Science of Breath," which includes
not only all that is known to the Western physiologist and hygienist,
but the occult side of the subject as well. It not only points out the
way to physical health along the lines of what Western scientists have
termed "deep breathing," etc., but also goes into the less known
phases of the subject, and shows how the Hindu Yogi controls his body,
increasing his mental capacity, and develops the spiritual side of his
nature by the "Science of Breath."

The Yogi practices exercises by which he attains control of his body,
and is enabled to send to any organ or part an increased flow of vital
force or "prana," thereby strengthening and invigorating the part or
organ. He knows all that his Western scientific brother knows about
the physiological effect of correct breathing, but he also knows that
the air contains more than oxygen and hydrogen and nitrogen, and that
something more is accomplished than the mere oxygenating of the blood.
He knows something about "prana," of which his Western brother is
ignorant, and he is fully aware of the nature and manner of handling
that great principle of energy, and is fully informed as to its effect
upon the human body and mind. He knows that by rhythmical breathing
one may bring himself into harmonious vibration with nature, and aid
in the unfoldment of his latent powers. He knows that by controlled
breathing he may not only cure disease in himself and others, but also
practically do away with fear and worry and the baser emotions.

To teach these things is the object of this work. We will give in a
few chapters concise explanations and instructions, which might be
extended into volumes. We hope to awaken the minds of the Western
world to the value of the Yogi "Science of Breath."