Prāyaścitta-vidhāna: Tapas, Dāna, Vrata, and Proportional Expiation (प्रायश्चित्तविधानम्)
कपाले यद्वदाप: स्यु: श्वद्तौ च यथा पय: । आश्रयस्थानदोषेण वृत्तहीने तथा श्रुतम्
kapāle yadvad āpaḥ syuḥ śvattau ca yathā payaḥ | āśrayasthānadoṣeṇa vṛttahīne tathā śrutam ||
Vyāsa said: “Just as water kept in a human skull, and milk placed in a dog’s hide, become impure because of the defect of their container, so too sacred learning, when lodged in a Brahmin devoid of right conduct, is tainted by the fault of its very seat. Knowledge without character loses its sanctity and moral force.”
व्यास उवाच
Sacred knowledge gains authority and purity only when grounded in right conduct; when the moral ‘container’ is impure, learning itself becomes ethically compromised and socially untrustworthy.
In the Shanti Parva’s instruction on dharma, Vyāsa uses vivid purity metaphors—water in a skull and milk in a dog’s hide—to warn that scriptural learning in a person lacking good conduct is corrupted by the defect of its bearer.