Matsya Purana — Kṛṣṇāṣṭamī Vrata: Monthly Śiva-Names
गोमूत्रघृतगोक्षीरतिलान् यवकुशोदकम् गोशृङ्गोदशिरीषार्कबिल्वपत्त्रदधीनि च पञ्चगव्यं च संप्राश्य शंकरं पूजयेन्निशि //
gomūtraghṛtagokṣīratilān yavakuśodakam gośṛṅgodaśirīṣārkabilvapattradadhīni ca pañcagavyaṃ ca saṃprāśya śaṃkaraṃ pūjayenniśi //
Having taken as purificatory substances cow’s urine, ghee, cow’s milk, sesame, barley, and kuśa-water—together with the rite-used cow-horn, odana (cooked offering), śirīṣa, arka, bilva leaves, and curd—and having partaken of pañcagavya, one should worship Śaṅkara at night.
This verse does not discuss pralaya; it focuses on ritual purification and the prescribed materials for night-worship of Śaṅkara.
It presents a householder-style discipline: maintaining ritual purity (through pañcagavya and sanctified items) and performing regulated worship, implying dharmic self-governance and auspicious observance applicable to rulers and householders alike.
The significance is ritual (not architectural): it lists standard Śaiva upacāras and purificants—especially pañcagavya and bilva leaves—used to prepare the worshipper and offerings for night-time Śiva-pūjā.