Matsya Purana — Description of Gomedaka and Puṣkara Dvīpas; the Lokāloka Boundary; Ocean Tide...
प्राक्पश्चिमायतैः पादैर् आसमुद्रादिति स्थितः पश्चार्धे कुमुदस्तस्य एवमेव स्थितस्तु वै //
prākpaścimāyataiḥ pādair āsamudrāditi sthitaḥ paścārdhe kumudastasya evameva sthitastu vai //
With his feet extended along the east–west axis, he is stationed in the division called Āsamudra; in its western half, Kumuda is likewise situated.
This verse is not about Pralaya; it is a technical Vastu instruction describing directional placement within a mandala (layout grid) using east–west orientation.
It supports the duty of orderly construction—kings in city-planning and householders in home/temple building—by prescribing correct directional zoning, a key ethical-ritual concern in Purāṇic Vastu practice.
It specifies that a particular mandala division (‘Āsamudra’) is oriented east–west, and that ‘Kumuda’ is placed in its western half—guidance used when marking Vastu-padas for temple or site layouts.