Matsya Purana — Division of Bhārata-varṣa
देवलोकच्युताः सर्वे बहुरूपाश्च सर्वशः हरिवर्षे नराः सर्वे पिबन्तीक्षुरसं शुभम् //
devalokacyutāḥ sarve bahurūpāśca sarvaśaḥ harivarṣe narāḥ sarve pibantīkṣurasaṃ śubham //
All the inhabitants there are said to have descended from the celestial realms; they are of many forms in every way. In Harivarṣa, all people drink the auspicious juice of sugarcane.
It does not describe pralaya directly; it belongs to the cosmographic mapping of regions (varṣas), highlighting the semi-divine origin and distinctive lifestyle of Harivarṣa’s inhabitants.
Indirectly, it frames an idealized land of purity and auspicious sustenance—useful for Purāṇic ethics by contrasting ordinary human conduct with a region associated with Hari, where life is marked by sacred, wholesome enjoyment rather than conflict or scarcity.
No explicit Vāstu or ritual procedure is stated; the ritual takeaway is symbolic—īkṣurasa (sugarcane juice) is treated as śubha (auspicious), reflecting a purity motif often echoed in offerings and celebratory rites.