Matsya Purana — The Rite and Glory of Meru-Dāna: The Tenfold ‘Gift of Meru’ and Mountain-Offe...
पश्चात् तिलाचलम् अनेकसुगन्धिपुष्पसौवर्णपिप्पलहिरण्मयहंसयुक्तम् आकारयेद्रजतपुष्पवनेन तद्वद् वस्त्रान्वितं दधिसितोदसरस् तथाग्रे //
paścāt tilācalam anekasugandhipuṣpasauvarṇapippalahiraṇmayahaṃsayuktam ākārayedrajatapuṣpavanena tadvad vastrānvitaṃ dadhisitodasaras tathāgre //
Thereafter, to the rear one should fashion Tilācala (the Sesame Mountain), adorned with many fragrant flowers, with a golden pippala (aśvattha) tree, and furnished with golden swans. Likewise, one should arrange a grove of silver flowers; and in front of it, a lake whose water is white as curd (dadhi), adorned with cloth ornaments (hangings/coverings).
This verse does not describe Pralaya directly; it gives a Vāstu-style prescription for arranging a sacred landscape (symbolic mountain, grove, and pond) within a ritual or temple setting.
It supports the dharma of patronage and right performance: a king or householder who sponsors consecrations and public religious works should follow prescribed layouts—placing auspicious features (groves, ponds, symbolic mounts) in correct directions and with proper materials.
It specifies a directional placement (rear/‘paścāt’ and front/‘agre’) and material symbolism—golden tree and swans, silver-flower grove, and a ‘curd-white’ pond—used to sanctify the precinct and enhance auspiciousness in Puranic temple/ritual architecture.