Engaged in his proper duty, he it is who is considered as the Death who live in the bodies of all creatures. He is, again, those vital airs called Prana and Apana, in the bodies of all embodied creatures.
विषयस्थः शरीरेषु स मृत्युः प्राणिनामिह। स च वायुः शरीरेषु प्राणापानशरीरिणाम्॥