Matsya Purana — Nārāyaṇa as Haṃsa in the Cosmic Ocean: Vedic Yajña-Puruṣa and Mārkaṇḍeya’s Vi...
देवं द्रष्टुमिहायातः को भवानिति विस्मयात् तथैव स मुनिः कुक्षिं पुनरेव प्रवेशितः //
devaṃ draṣṭumihāyātaḥ ko bhavāniti vismayāt tathaiva sa muniḥ kukṣiṃ punareva praveśitaḥ //
Having come here to behold the Deity, the sage—astonished—asked, “Who are you?” And just so, that muni entered again into (the Lord’s) belly.
It highlights miraculous divine agency typical of the Pralaya cycle: the Lord’s supernatural form contains beings within Himself, suggesting protection and containment during cosmic upheaval.
Indirectly, it models reverence and inquiry before the Divine—an ethical posture encouraged in Purāṇic dharma: approach sacred reality with humility, ask sincerely, and accept the Lord’s supremacy.
No explicit Vāstu or ritual procedure is stated; the key theme is darśana (beholding the Deity) and awe (vismaya), which underlies many Purāṇic approaches to worship and sacred encounter.