कर्म ब्रह्मोद्भवं विद्धि ब्रह्माक्षरसमुद्भवम्।
तस्मात्सर्वगतं ब्रह्म नित्यं यज्ञे प्रतिष्ठितम्।।3.15।।
3.15. Action arises from the Brahman, you should know this; the Brhaman arises from what does not stream forth; therefore the all-pervading Brahman is permanently based on the sacrifice.
3.14-15 Annat etc. Karma etc. The things, that are born and are of diversified nature, arise from the food viz , the one which is of the nature of being undifferentiated objct of enjoyment, and which is somehow called by different synonyms like maya, vidya, kala etc. The said food also [arises] from the rain-cloud i.e., the Self, which is of the nature of uninterrupted Consciousness. For, the state of being an object of enjoyment gains its existence depending on the enjoyer. That rain-cloud too viz., the enjoyer, [arises] from the sacrifice (yajna) i.e., the act of enjoying. For, the state of being an enjoyer depends on the act of enjoying. And the act of enjoying [arises] from action, i.e., from the strength of freedom of action-energy (freedom in assuming any and every from). The said freedom also, though it is uninterrupted, [arises] due to the good touch of the Brahman Which is full of freedom and of forms that are conditioned and are many, (or which is full of freedom and of many forms and is not conditioned); and which is the Supreme Soul, Brahman assuming the beings (tattvas), viz., the mighty Isvara (or Mahesvara) [and the Sadasiva] skipping high on It (Brahman). That Brahman, having the rising Lord-ship (or might) that is pure and unvieled, arises from what does not stream forth viz., the pure Supreme Consciousness in which the entire waves of might and Lordship have totally calmed down. Thus, the sacrifice well established [as an exil] in this manner, causing a six spoked wheel to rotate , spins the [two-fold] yarns - the yarn of emancipation by employing that part fitted with three spokes, and the yarn of [birth-and-death] activity by looming with the part of the [other] three spokes. Thus, the Brahman Which is charming with rolling waves of wisdom and ignorance, is established on nothing but the sacrifice. But certain other commentators [interpret the passage as ] : The food is indeed the cause of beings through its graded chages into semen verile and blood; the food arises from the rain-cloud through the rains; that rains too arises from the [Vedic] sacrifice according to the principle : The oblation offered into the [sacrificial] fire, pro- perly reaches the sun etc. (Manu. III, 76). The sacrifice [arises] from the action; the action follows the knowledge, and the knowledge is from the Imperishable. Still others [explain] differently : The food that is being enjoyed is the pentad of sense-objects; depending on it, the bhutas (elements) i.e., the sense-organs, act; the objects are of the nature of the sparkles of the Self. Therefore, it is only the Self that is being nourished by enjoying sense-objects. Hence the all-pervading Brahman is established in action. For It is identical with that.
Karma brahmodbhavam viddhi brahmaakshara samudbhavam; Tasmaat sarvagatam brahma nityam yajne pratishthitam.
karma—duties; brahma—in the Vedas; udbhavam—manifested; viddhi—you should know; brahma—The Vedas; akṣhara—from the Imperishable (God); samudbhavam—directly manifested; tasmāt—therefore; sarva-gatam—all-pervading; brahma—The Lord; nityam—eternally; yajñe—in sacrifice; pratiṣhṭhitam—established