Matsya Purana — The Rite of Donating the ‘Mountain of Salt’
विष्णुदेहसमुद्भूतं यस्मादारोग्यवर्धनम् तस्मात्पर्वतरूपेण पाहि संसारसागरात् //
viṣṇudehasamudbhūtaṃ yasmādārogyavardhanam tasmātparvatarūpeṇa pāhi saṃsārasāgarāt //
Since this sacred power has arisen from the body of Viṣṇu and therefore increases health and well-being, hence—O Lord—protect me/us from the ocean of saṃsāra, taking the form of a mountain, a firm refuge.
It does not describe pralaya directly; it uses the common Purāṇic metaphor of the “ocean of saṃsāra” and asks Viṣṇu/Matsya to become a stable refuge (like a mountain) who carries one beyond existential peril.
It frames health (ārogya) as a divine support for dharma: a householder or king can sustain vows, charity, governance, and ritual only when bodily well-being is protected, hence the prayer for ārogya and deliverance from debilitating worldly suffering.
No explicit Vāstu rule is stated; however, the “mountain-form refuge” aligns with temple symbolism where the deity is the immovable support (like Meru), making the verse thematically relevant for ritual stotra-usage in worship.