Prana is energy. Prana is Christ. That energy is the energy that palpitates in the heart of every existing thing. Everything: every rock, plant, fish, horse, planet, sun, universe, sun, is sustained by the fire of Christic Prana. That is why Christ is “the life, the light, and the way.” It is the energy of existence. It is the Ain Soph Aur. That prana, that energy vibrates in many different modalities, many different levels of existence, and it is what sustains everything. It is the great breath. Everything that is in you is prana, in different modifications. We live, we breathe, we exist, we are sustained by that force.
“Prana is the sum total of all energy that is manifest in the universe. It is the sum total of all the forces in nature. It is the sum total of all latent forces and powers which are hidden in men [and women] and which lie everywhere around us. Heat, light, electricity, magnetism are the manifestations of prana. […] Whatever moves or works or has life is but an expression of manifestation of prana. The prana is related to mind [Hod / Netzach] and through mind to will [Tiphereth], and through will to the individual soul [Tiphereth / Geburah], and through this to the Supreme Being [Chesed / Atman]. If you know how to control the little waves of prana working thorough your mind, then the secret of subjugating universal prana will be known to you.” – Swami Sivananda
Prana is not separate from us. It is not a concept. Prana is not a theory. Everything that exists is prana, but modified by cause and effect (karma).