The Bhagavad Gita by Eknath Easwaran

The Supreme Self ╯
both darkness and light coexist. In his divine mystery he
sends fragments of himself to become the inner Self in each
creature. In this sense the Self enters the body at conception,
dwells in the body, and then departs at death. Krishna is the
prana – the breath or vitality – of the body. The Upanishads
speak of five pranas; here the Gita mentions the two most
prominent: the prana by which we breathe and the prana that
digests food.
– d.m.
231 ╯