Matsya Purana — The Rite and Glory of Meru-Dāna: The Tenfold ‘Gift of Meru’ and Mountain-Offe...
मेरुर्महाव्रीहिमयस्तु मध्ये सुवर्णवृक्षत्रयसंयुतः स्यात् पूर्वेण मुक्ताफलवज्रयुक्तो याग्येन गोमेदकपुष्परागैः //
merurmahāvrīhimayastu madhye suvarṇavṛkṣatrayasaṃyutaḥ syāt pūrveṇa muktāphalavajrayukto yāgyena gomedakapuṣparāgaiḥ //
In the center, Mount Meru is said to be fashioned from great heaps of rice and furnished with three golden trees. On its eastern side it is adorned with pearls and diamonds; on its southern side with gomeda gems and puṣparāga (topaz).
This verse is not about Pralaya; it belongs to cosmography, describing the sacred central mountain (Meru) and its jeweled directions as part of the ordered universe.
Indirectly, it supports dharmic worldview: kings and householders are urged to align ritual, charity, and governance with the cosmic order (dik, center, and sacred geography) that Puranas present as the framework of righteous life.
The directional placement of specific gems (east/south) reflects a dik-based symbolism used in ritual layouts and later Vastu thinking—materials and auspicious substances are associated with directions in consecration and sacred-space planning.