Agnihotra

H.H. Sri Swami Sivananda:

So long as Prana pulls up and Apana pulls down the life-forces, there is continuity of life. But, the moment either of these becomes weaker, there is an exit of the life-force. If the Apana gives way, then the Jiva will pass out of the body through either the head or the nose or the ear or the mouth. If the Prana gives way, then it will pass out of the body through the anus.