Matsya Purana — The Ravi-Śayana
इत्यादि चास्त्राणि च पूज्य नित्यं विश्वेश्वरायेति शिवो ऽभिपूज्यः भोक्तव्यमत्रैवमतैलशाकम् अमांसमक्षारमभुक्तशेषम् //
ityādi cāstrāṇi ca pūjya nityaṃ viśveśvarāyeti śivo 'bhipūjyaḥ bhoktavyamatraivamatailaśākam amāṃsamakṣāramabhuktaśeṣam //
Thus, these rites and sacred ordinances (astra) are to be honored daily; and Śiva is to be duly worshipped with the invocation, “Salutations to Viśveśvara.” One should then eat only what is appropriate here: greens cooked without oil, without meat, without alkaline (impurifying) additives, and not food left over from another’s eating.
This verse does not discuss pralaya directly; it focuses on daily worship (pūjā) and purity disciplines, indicating that right conduct and ritual order are upheld regardless of cosmic cycles.
It prescribes a householder-style discipline: daily honoring of scripture and worship of Śiva as Viśveśvara, followed by sāttvika eating—oil-free greens, no meat, no kṣāra additives, and no leftovers—emphasizing self-restraint and ritual cleanliness expected of rulers and householders alike.
The ritual significance is the prescribed Śaiva invocation (“to Viśveśvara”) and the purity code for offerings/consumption after worship, highlighting standard pūjā-vidhi concerns (mantra, reverence, and uncontaminated food).