Bhagavad Gita Chapter 4, Verse 24

ब्रह्मार्पणं ब्रह्म हविर्ब्रह्माग्नौ ब्रह्मणा हुतम् | ब्रह्मैव तेन गन्तव्यं ब्रह्मकर्मसमाधिना ||

brahmārpaṇaṁ brahma havir brahmāgnau brahmaṇā hutam brahmaiva tena gantavyaṁ brahma-karma-samādhinā

Brahman is the offering, Brahman is the oblation, offered by Brahman into the fire that is Brahman. By absorption in action as Brahman, one verily reaches Brahman.

Krishna reveals the highest understanding of sacrifice: everything is Brahman (the Absolute). The offering is Brahman, the fire is Brahman, the one offering is Brahman. This non-dual perspective transforms sacrifice—when you realize everything is one, action becomes worship of the One. 'Brahma-karma-samādhinā' (absorption in action as Brahman) means seeing action itself as the Absolute, not separate from it. This verse shows the culmination of understanding action: when you realize the unity underlying all, action becomes sacred. The phrase 'brahmaiva tena gantavyam' (verily reaches Brahman) shows this understanding leads to the ultimate goal. This is the deepest teaching about action—not just doing work, but realizing work itself is the Absolute.