Matsya Purana — The Cave-Sanctuary: Jewel-Lake
सुखोष्णं चैव तत्तोयं स्नानाच्छीतविनाशनम् वैडूर्यस्य शिला मध्ये सरसस्तस्य शोभना //
sukhoṣṇaṃ caiva tattoyaṃ snānācchītavināśanam vaiḍūryasya śilā madhye sarasastasya śobhanā //
The water there is pleasantly warm, and bathing in it destroys ailments born of cold. In the midst of that lovely lake lies a slab of vaidūrya (cat’s-eye gemstone), adding to its splendor.
This verse is not about pralaya; it belongs to a tīrtha-description section, emphasizing the sanctity and beneficial properties of a sacred lake’s waters.
It supports the householder’s dharma of maintaining bodily purity and performing tīrtha-snānā (ritual bathing) for health and religious merit—typical Purāṇic guidance for disciplined living.
Ritually, it highlights snāna-phala (the fruit of bathing) and the sanctified landscape; the mention of a gemstone slab suggests a revered focal feature within the tīrtha, akin to marked sacred spots in pilgrimage-site layout.