Ācāra-vidhi (Rules of Conduct) — Yudhiṣṭhira’s Inquiry and Bhīṣma’s Normative Catalogue
अग्निवेगवह:ः प्राणो गुदान्ते प्रतिहन्यते । स ऊर्ध्वमागम्य पुन: समुत्क्षिपति पावकम्
agnivegavahaḥ prāṇo gudānte pratihanyate | sa ūrdhvam āgamya punaḥ samutkṣipati pāvakam |
バラドヴァージャは説く。火の勢いに乗って流れるプラーナは、直腸の末端近くで妨げに突き当たる。反発して上方へ戻ると、近くにある内なる火を押し上げ、さらに燃え立たせる。
भरद्वाज उवाच
The verse teaches that bodily life is governed by regulated movements of prāṇa and agni; understanding these inner dynamics supports restraint, balance, and disciplined conduct rather than impulsive living.
Bharadvāja describes prāṇa moving with fiery force, being checked near the anal region, then rebounding upward and thereby raising/activating the nearby inner fire (pāvaka), as part of an explanation of internal bodily processes.