
The Science of Breath & the Philosophy of the Tatwas by Rama Prasad is an ancient text translated from Sanskrit. It deals with breathing and breaths potential as a tool for spiritual enlightenment. The book goes in deep details about the nature of breathing from a scientific viewpoint and thereby give us both an understanding of the early Aryan culture and the basics of all later breathing techniques.
Download the free PDF e-book here (131 pages):
Natures Finer Forces The Science of Breath Rama Prasad
very usefull