Bhagavad Gita 3.15
कर्म ब्रह्मोद्भवं विद्धि ब्रह्माक्षरसमुद्भवम् । तस्मात्सर्वगतं ब्रह्म नित्यं यज्ञे प्रतिष्ठितम् ॥
karma brahmodbhavaṃ viddhi brahmākṣara-samudbhavam | tasmāt sarva-gataṃ brahma nityaṃ yajñe pratiṣṭhitam ||
Translation
Know that action proceeds from the Brahman; and the Brahman proceeds from the Imperishable. Therefore the all-pervading Brahman is ever present in sacrifice.
Reflection
What small action of yours would feel different if you saw what it was actually connected to?
Read this verse in its chapter: Chapter Three
The chain goes one step deeper. Action from Brahman. Brahman from the Imperishable, akṣara. The verse hands the wheel its source. Sacrifice is where the all-pervading meets the local. Yajñe pratiṣṭhitam: established in sacrifice. The student wanted philosophical grounding, and here it is: the work in front of you is connected, by an unbroken chain, to what does not perish. The chain is not theoretical. It runs through the moment. Whatever you do next is on that chain. The verse closes the cosmology and prepares the hammer of 3.16.