One verse

Bhagavad Gita 15.14

15.14

अहं वैश्वानरो भूत्वा प्राणिनां देहमाश्रितः | प्राणापानसमायुक्तः पचाम्यन्नं चतुर्विधम् ||१५-१४||

ahaṃ vaiśvānaro bhūtvā prāṇināṃ dehamāśritaḥ . prāṇāpānasamāyuktaḥ pacāmyannaṃ caturvidham ||15-14||

aham
I
vaiśvānaraḥ
My plenary portion as the digesting fire
bhūtvā
becoming
prāṇinām
of all living entities
deham
in the bodies
āśritaḥ
situated
prāṇa
the outgoing air
apāna
the down-going air
samāyuktaḥ
keeping in balance
pacāmi
I digest
annam
foodstuff
catuḥ-vidham
the four kinds

I am the fire of digestion in the bodies of all living entities, and I join with the air of life, outgoing and incoming, to digest the four kinds of foodstuff.