Rudra-prasava-varṇana
The Manifestation and Naming of Rudra / Nīlalohita
मुक्तात्मा संस्थितो रुद्रः पिबत्यंभो गभस्तिभिः / अद्यते पीयते चैव ह्यन्नपानादिकाम्यया
muktātmā saṃsthito rudraḥ pibatyaṃbho gabhastibhiḥ / adyate pīyate caiva hyannapānādikāmyayā
Rudra, established in liberated Self, drinks the waters with his rays. Through the desire for food and drink, there is eating and drinking.