Matsya Purana — Cosmography of Jambūdvīpa: Varṣas
परिमण्डलयोर्मध्ये मेरुः कनकपर्वतः चातुर्वर्ण्यसमो वर्णैश् चतुरस्रः समुच्छ्रितः //
parimaṇḍalayormadhye meruḥ kanakaparvataḥ cāturvarṇyasamo varṇaiś caturasraḥ samucchritaḥ //
Between the two circular regions stands Meru, the golden mountain—lofty and four-sided—its hues corresponding to the four varṇas.
This verse is not describing Pralaya; it presents the stable cosmic geography of Meru as the central axis between circular regions, a framework often assumed even when Purāṇas later discuss cycles of dissolution.
Indirectly, it supports the Purāṇic ideal that social order (cāturvarṇya) mirrors cosmic order; a king preserves dharma by maintaining harmony among the varṇas just as the cosmos is described as structured and proportioned.
Meru’s ‘central’ and ‘four-sided’ form echoes mandala-based planning: sacred layouts often use a central axis and quadrangular geometry, aligning ritual space with cosmic symbolism (a key idea used in Vastu and temple design).