Matsya Purana — Navagraha Sacrifice for Planetary Pacification and Prosperity
पुण्यस्त्वं शङ्ख पुण्यानां मङ्गलानां च मङ्गलम् विष्णुना विधृतश्चासि ततः शान्तिं प्रयच्छ मे //
puṇyastvaṃ śaṅkha puṇyānāṃ maṅgalānāṃ ca maṅgalam viṣṇunā vidhṛtaścāsi tataḥ śāntiṃ prayaccha me //
O Conch, you are holy among all that is holy, and the very auspiciousness among all auspicious things. You are borne by Lord Viṣṇu; therefore, grant me peace (and protection).
It does not describe Pralaya directly; instead, it functions as a protective peace-invocation (śānti) that would be recited to remove disturbances—relevant to Purāṇic ritual contexts rather than cosmological dissolution.
It supports the dharmic practice of maintaining auspiciousness and social-ritual order: a householder (and by extension a king overseeing public rites) invokes Viṣṇu’s sacred symbols for purification, calm, and protection before ceremonies.
Ritually, the conch is praised as a supreme auspicious object and is invoked to bestow śānti; in temple practice it aligns with conch-blowing and sanctification rites used to commence worship and dispel inauspiciousness.