Prâna.
Project Gutenberg EPUB3 edition
Blavatsky, H. P. (Helena Petrovna)
Q. What is the relation of man to Prâna—the periodical life?
A. Jîva becomes Prâna only when the child is born and begins to breathe. It is the breath of life, Nephesh. There is no Prâna on the Astral Plane.