Bhagavad Gita
15.14

अहं वैश्वानरो भूत्वा प्राणिनां देहमाश्रितः | प्राणापानसमायुक्तः पचाम्यन्नं चतुर्विधम् ||

ahaṁ vaiśvānaro bhūtvā prāṇināṁ deham āśritaḥ prāṇāpāna-samāyuktaḥ pacāmy annaṁ catur-vidham

Translation

I, dwelling in the bodies of living beings as the digestive fire (Vaishvanara), digesting all four types of food through the union of prana and apana.

Interpretation

Krishna is Vaishvanara — the digestive fire that dwells within all living bodies. Every act of digestion, every conversion of food into energy, every cellular metabolism is the Divine at work. The four types of food (chewed, sucked, licked, and drunk) are all transformed through the sacred fire of digestion, sustained by the twin vital forces of prana (inhalation) and apana (exhalation). This verse sacralizes the body: the same Divine who illumines the cosmos also digests your lunch. Eating mindfully becomes an act of devotion; the body becomes the temple of the Divine fire.