Matsya Purana — The Observance of Viśoka-Dvādaśī: A Lakṣmī–Viṣṇu Vow for Sorrow-Removal and P...
कन्दर्पाय नमो गुह्यं माधवाय नमः कटिम् दामोदरायेत्युदरं पार्श्वे च विपुलाय वै //
kandarpāya namo guhyaṃ mādhavāya namaḥ kaṭim dāmodarāyetyudaraṃ pārśve ca vipulāya vai //
One should place (the mantra) “Obeisance to Kandarpāya” upon the secret part; “Obeisance to Mādhava” upon the waist; “(Obeisance) to Dāmodara” upon the belly; and upon the sides, indeed, “(Obeisance) to Vipula.”
This verse does not describe pralaya directly; it teaches a ritual nyāsa—placing divine names on body-points—for protection and sanctification, a practice often recommended to remain spiritually guarded in any circumstance.
It functions as a practical daily-worship instruction: a king or householder is advised to perform protective Vishnu-nyāsa before rites, supporting self-discipline (śauca), steadiness of mind, and dharmic conduct.
The significance is ritual, not architectural: it is an anga-nyāsa sequence mapping specific Vishnu epithets to specific body regions, a standard preparatory step before pūjā, japa, consecrations, and temple/household rituals.