Matsya Purana — Cosmography of Jambūdvīpa: Varṣas
हरिवर्षात्परं चापि मेरोस्तु तदिलावृतम् इलावृतात्परं नीलं रम्यकं नाम विश्रुतम् //
harivarṣātparaṃ cāpi merostu tadilāvṛtam ilāvṛtātparaṃ nīlaṃ ramyakaṃ nāma viśrutam //
Beyond Hari-varṣa lies Ilāvṛta, belonging to Mount Meru; and beyond Ilāvṛta is the celebrated region called Ramyaka, by the mountain Nīla.
This verse is not about Pralaya; it gives a cosmographical arrangement of regions (varṣas) around Mount Meru—Harivarṣa, Ilāvṛta, and Ramyaka—used in Purāṇic descriptions of the ordered universe.
Indirectly, it supports dharma by grounding pilgrimage, sacred geography, and a king’s ideal of protecting and honoring holy regions; it does not prescribe specific royal or household duties in this line.
No direct Vāstu/temple-rule is stated; the ritual takeaway is geographic orientation—Meru-centered cosmology often guides tīrtha concepts and symbolic temple layouts that mirror a sacred world-order.