Rudra-prasava-varṇana
The Manifestation and Naming of Rudra / Nīlalohita
वातात्मिका तु चैशानी सा प्राणः प्राणिनामिह / पीताशितानि पचति भूतानां जठरेष्विह
vātātmikā tu caiśānī sā prāṇaḥ prāṇināmiha / pītāśitāni pacati bhūtānāṃ jaṭhareṣviha
Īśānī, whose nature is wind, is the prāṇa of living beings here. In the bellies of creatures, she digests what is drunk and eaten.