Matsya Purana — The Rite and Glory of Meru-Dāna: The Tenfold ‘Gift of Meru’ and Mountain-Offe...
याम्येन गन्धमदनश्च निवेशनीयो गोधूमसंचयमयः कलधौतयुक्तः हैमेन यज्ञपतिना घृतमानसेन वस्त्रैश्च राजतवनेन च संयुतः स्यात् //
yāmyena gandhamadanaśca niveśanīyo godhūmasaṃcayamayaḥ kaladhautayuktaḥ haimena yajñapatinā ghṛtamānasena vastraiśca rājatavanena ca saṃyutaḥ syāt //
On the southern side one should place Gandhamadana, fashioned as a heap of wheat (godhūma) and adorned with kaladhauta (fine gold). It should be accompanied by a golden yajñapati, the lord of the sacrifice, with ghee (ghṛta) represented as his disposition/offering, and furnished with garments and a silver grove as ornamentation.
This verse is not about pralaya; it belongs to Vāstu-vidhi and describes auspicious, direction-based ritual placements and materials for establishing a residence.
It guides the householder (and by extension a king establishing settlements) to follow orderly, dharmic procedures in building and consecrating a dwelling—using prescribed placements and pure substances (wheat, ghee, gold, cloth) to invoke prosperity and stability.
It specifies a southern-direction installation featuring Gandhamadana and a yajñapati motif, with symbolic materials—wheat heap (abundance), kaladhauta/gold (auspiciousness), ghee (sacrificial purity), cloth (ritual completeness), and silver ornamentation—used as part of Matsya Purana Vastu Shastra procedure.