Better is one's own duty, though imperfectly performed, than the duty of another well performed. Performing the duty ordained by one's own nature, one does not incur sin.

This principle appeared earlier in the Gita (chapter 3, verse 35) and returns here with greater resonance because of the full context now built around it. The teaching challenges the human temptation to abandon one's own path in favour of someone else's that appears more glorious, more spiritual, more impressive. The imperfect performance of one's own authentic duty — the path that corresponds to one's genuine nature — is spiritually more valuable than the perfect performance of a borrowed one. When one acts from one's own nature (svabhāva-niyatam), there is authenticity, an absence of pretence, a natural alignment — and this authenticity is itself a form of integrity that prevents the accumulation of spiritual harm (kilbiṣa).