Shloka 30
Brahmopadeśa: Adhipatitva-kathana, Dharma-lakṣaṇa, and Kṣetra–Kṣetrajña Viveka
Book 14, Chapter 43
अपां धातू रसो नित्यं जिद्नया स तु गृहाते । जिद्दास्थश्न तथा सोमो रसज्ञाने विधीयते
apāṁ dhātū raso nityaṁ jihvayā sa tu gṛhyate | jihvā-sthaś ca tathā somo rasa-jñāne vidhīyate ||
বায়ু বললেন—জলতত্ত্বের নিত্য সার হলো ‘রস’; জিহ্বা দ্বারা তা গৃহীত হয়। জিহ্বায় অধিষ্ঠিত সোম (চন্দ্র) রসের জ্ঞান ও আস্বাদনে সহায়ক রূপে নিযুক্ত।
वायुदेव उवाच
Educational Q&A
The verse links sense-perception to elemental cosmology: taste (rasa) is rooted in the water-element and is known through the tongue, with Soma (the Moon principle) supporting the capacity to discern and enjoy taste.
Vāyu-deva is explaining a doctrinal mapping of elements, senses, and deities—describing how taste is perceived and assigning Soma a functional presence in the tongue for the cognition of taste.