Matsya Purana — Pṛthu
तदन्नमभवच्छुद्धं प्रजा जीवन्ति येन वै ततस्तु ऋषिभिर्दुग्धा वत्सः सोमस्तदाभवत् //
tadannamabhavacchuddhaṃ prajā jīvanti yena vai tatastu ṛṣibhirdugdhā vatsaḥ somastadābhavat //
That (substance) became pure food, by which beings indeed live. Then it was milked by the Ṛṣis, and its calf at that time became Soma.
It highlights a creation-side motif: a purified cosmic nourishment arises to sustain beings, and Soma is produced through a symbolic ‘milking’ by the sages—more about sustaining order than dissolution.
By stressing ‘pure food’ as the basis of life, it implicitly supports dharmic governance and household ethics: rulers and householders should ensure purity and right provision of sustenance (anna-śuddhi, proper support of society and ritual life).
Ritually, Soma is central to Vedic sacrifice; the verse frames Soma’s emergence as a sacred extraction, reinforcing Soma’s sanctity in yajña procedures (though no direct Vāstu or temple-building rule is stated here).