त्रिविधं नरकस्येदं द्वारं नाशनमात्मनः । कामः क्रोधस्तथा लोभस्तस्मादेतत्त्रयं त्यजेत् ॥ २१ ॥
tri-vidhaṁ narakasyedaṁ dvāraṁ nāśhanam ātmanaḥ kāmaḥ krodhas tathā lobhas tasmād etat trayaṁ tyajet
Translation
Desire, anger and greed: these three are the gates of hell, destroyers of the self. Therefore one should give up all three.
Hindi Meaning (हिंदी अर्थ)
काम, क्रोध और लोभ, ये तीन प्रकार के नरक के द्वार आत्मा का नाश करने वाले हैं। इसलिए इन तीनों को त्याग देना चाहिए।
Commentary
After the long description, Krishna reduces the demonic nature to three roots: kama (desire), krodha (anger) and lobha (greed). This is one of the Gita's most quoted verses. Desire unfulfilled becomes anger (as 2.62–63 showed); desire fulfilled becomes greed for more. Guarding these three gates is a complete practical discipline.