Matsya Purana — Maya’s Nectar-Reservoir in Tripura and the Revival of the Slain in the Tripur...
अस्मिन्किल पुरे वापी पूर्णामृतरसाम्भसा निहता निहता यत्र क्षिप्ता जीवन्ति दानवाः //
asminkila pure vāpī pūrṇāmṛtarasāmbhasā nihatā nihatā yatra kṣiptā jīvanti dānavāḥ //
Indeed, in this very city there is a well filled with water that has the essence of nectar; there, even the Dānavas—though slain again and again—when cast into it, come back to life.
This verse does not describe Pralaya directly; instead, it uses the motif of amṛta-like water to highlight restoration of life—an idea that complements Purāṇic themes of renewal after destruction.
It implies the protective and merit-giving value of maintaining sacred water sources in a city—wells and reservoirs are key civic duties (public welfare) for rulers and householders in Purāṇic ethics.
The verse centers on a vāpī (well/step-well), underscoring the ritual and sacral importance of properly established water structures—often treated in Vāstu-related contexts as auspicious civic infrastructure.