Ācāra-vidhi (Rules of Conduct) — Yudhiṣṭhira’s Inquiry and Bhīṣma’s Normative Catalogue
अपानप्राणयोर्मध्ये प्राणापानसमाहित: । समन्वितस्त्वधिष्ठानं सम्यक्पचति पावक:,अपान और प्राणके मध्यभाग (नाभि) में प्राण और अपान दोनोंका आश्रय लेकर स्थित हुआ जठरानल खाये हुए अन्नको भलीभाँति पचाता है
apānaprāṇayor madhye prāṇāpānasamāhitaḥ | samanvitastv adhiṣṭhānaṃ samyak pacati pāvakaḥ ||
Wika ni Bharadvāja: Sa pagitan ng apāna at prāṇa—sa may pusod—ang apoy ng pagtunaw, na sinusuportahan at iniaayon sa kapwa prāṇa at apāna, ay maayos na “niluluto” (tinutunaw) ang pagkaing nakain.
भरद्वाज उवाच
Digestion is presented as a regulated process: the digestive fire functions correctly when prāṇa and apāna are balanced and properly situated. The broader ethical suggestion is that harmony of inner forces—order, restraint, and right coordination—sustains life and supports dharmic living.
Bharadvāja explains a yogic-physiological point within Śānti Parva’s instructional discourse: how vital winds (prāṇa and apāna) relate to the digestive fire at the navel region, enabling the proper digestion of consumed food.