Nourish the gods with this sacrifice, and may they nourish you. Nourishing each other mutually, you shall attain the supreme good.

The cosmic exchange is made explicit. The devas — cosmic powers, natural elements, vital functions — maintain the universe through sacrificed energy.

Paraspara — mutually — describes reciprocity, not unilateral dependence. Bhāvayantaḥ — nourishing or making flourish — applies in both directions. Śreyaḥ param — supreme good — is the result of actively participating in the cosmic order. To refuse to sacrifice is to refuse to be part of existence itself.