Yajña-bhāga-vyavasthā and the Pravṛtti–Nivṛtti Framework (यज्ञभागव्यवस्था तथा प्रवृत्तिनिवृत्तिधर्मविवेचनम्)
यथा हि कनकं शुद्ध तापच्छेदनिकर्षणै:
yathā hi kanakaṃ śuddhaṃ tāpacchedanikarṣaṇaiḥ
यथा हि कनकं शुद्धं तापच्छेदनिकर्षणैः । परीक्ष्यते, तथा नॄणां धैर्यं सारं च तपसा परीक्ष्यते ॥
भीष्म उवाच
True purity and excellence are not merely claimed; they are demonstrated through rigorous tests—like gold that is authenticated and refined by heat, cutting, and rubbing. Likewise, virtue and steadiness become evident when a person faces disciplined trials.
In Śānti Parva, Bhīṣma continues instructing Yudhiṣṭhira on dharma and right conduct. Here he uses a familiar metaphor from metallurgy—testing gold—to explain how character and moral strength are revealed and refined through challenges.