SBAL: PRANA AND THE BEING
Prana is the expression of the manifesting Being. It is the tendency of the unmanifested to manifest. It can be said to be the impulse of the abstract absolute Being. The Being is the absolute existence of unmanifested nature. Its tendency to vibrate and manifest is referred to as prana. The Being vibrates by virtue of prana and manifests. --------------- I think that definition is hard to beat, at least from the POV of modern physics! :D (Got that definition from a Finnish [former?] purusha - at least I believe he's one.)