Matsya Purana — Purūravas Witnesses the Sports of Apsarases and Gandharvas; Attains the Grace...
काश्चित्पश्यति भूपालं नलिनीषु पृथक्पृथक् क्रीडमानास्तु गन्धर्वैर् देवरामा मनोरमाः //
kāścitpaśyati bhūpālaṃ nalinīṣu pṛthakpṛthak krīḍamānāstu gandharvair devarāmā manoramāḥ //
Some celestial maidens behold the king, while others—separately, here and there among the lotus-pools—charmingly sport with the Gandharvas, those delightful women of heaven.
This verse does not discuss Pralaya; it is a poetic description of celestial beings and lotus-pools, used to evoke a divine or otherworldly setting.
Indirectly, it frames the king (bhūpāla) as a central figure worthy of attention even amid heavenly pleasures, reinforcing the Purāṇic ideal of kingship as a visible, public role tied to dharma and prestige.
No explicit Vāstu or ritual rule is stated; the mention of nalinī (lotus-pools) supports the broader Purāṇic aesthetic of sacred water-bodies, which later Vāstu and tīrtha traditions treat as auspicious elements in temple and pilgrimage landscapes.