Bhagavad Gita · Chapter 3: The Path of Action
Bhagavad Gita 3.15
कर्म ब्रह्मोद्भवं विद्धि ब्रह्माक्षरसमुद्भवम् ।
तस्मात्सर्वगतं ब्रह्म नित्यं यज्ञे प्रतिष्ठितम् ॥
karma brahmodbhavaṃ viddhi brahmākṣarasamudbhavam | tasmātsarvagataṃ brahma nityaṃ yajñe pratiṣṭhitam ||
Know that action arises from Brahman, and Brahman arises from the Imperishable. Therefore the all-pervading Brahman is always established in sacrifice.
Modern context
The chain is traced to its source: action comes from sacred knowledge, and that from the imperishable reality. So the ultimate is present in every act of offering. An act of selfless work is not far from the sacred; it is one of the places where the sacred is found.