Every wave in the ocean is water. The crest, the trough, the foam, the stillness between them — all water. Krishna offers the same vision of reality: the ladle that pours the offering is Brahman. The ghee being poured is Brahman. The fire that receives it is Brahman. The one who pours is Brahman. When everything is Brahman, where is the separate 'I' that could claim doer-ship?
Tradition holds that this shloka is recalled before meals, turning the act of eating into an acknowledgment that the food, the eater, and the process of nourishment are all expressions of the same ultimate reality. The deepest yajna is not a ritual. It is the recognition that nothing exists apart from Brahman.