Mahabharata 3.203.22

प्राणानां संनिपातात्तु संनिपातः प्रजायतेऊष्मा चाग्निरिति ज्ञेयो योऽन्नं पचति देहिनाम्

prāṇānāṃ saṃnipātāttu saṃnipātaḥ prajāyateūṣmā cāgniriti jñeyo yo'nnaṃ pacati dehinām

Our plain-language meaning of this verse is waiting for scholar review.