Bhagavad Gita 4.24

ब्रह्मार्पणं ब्रह्महविर्ब्रह्माग्नौ ब्रह्मणा हुतम्।
ब्रह्मैव तेन गन्तव्यं ब्रह्मकर्मसमाधिना।।4.24।।

Brahmarpanam brahmahavirbrahmagnau brahmana hutam
Brahmaiva tena gantavyam brahmakarmasamadhina

Simple meaning, written by AIThe offering, the oblation, and the fire are all Brahman, and the one who offers into them is absorbed in Brahman. A person absorbed in this way of acting reaches Brahman.