The Hindu Yogis have always paid great attention to the Science of Breath. Many Western writers have touched upon this phase of the Yogi teachings, but it has been reserved for the writer of this work to give to the Western student, in concise form and simple language, the underlying principles of the Yogi Science of Breath, together with many of the favorite Yogi breathing exercises and methods.

The first part of the book is devoted to the physical phase of the Science of Breath; then the psychic and mental sides are considered, and finally, the spiritual side is touched upon.