The Prashna Upanishad with Shankara’s Commentary
देवानामसि वह्नितमः पितृणां प्रथमा स्वधा ।
ऋषीणां चरितं सत्यमथर्वाङ्गिरसामसि ॥ ८ ॥
devānāmasi vahnitamaḥ pitṛṇāṃ prathamā svadhā |
ṛṣīṇāṃ caritaṃ satyamatharvāṅgirasāmasi || 8 ||
8. You are the best carrier to the celestials, the first oblation to the manes. You are the true active principle of the senses (prânas) which form the sap of the body.
Com.—Moreover, you are the best of the carriers of oblations to the Dêvâs such as Indra. The food given to the manes in the Nandi srâddha is prior even to that offered to the chief of the Dêvâs. You alone are the carrier of that to the manes. Besides, of the senses such as the eye, etc., (prânas) which are called atharva, and in whose absence the limbs are dried up, you are the active principle aiding in the support, etc., of the body.