Matsya Purana — Description of Pralaya: Drying
ततः पीत्वार्णवान् सर्वान् नदीः कूपांश्च सर्वशः पर्वतानां च सलिलं सर्वमादाय रश्मिभिः //
tataḥ pītvārṇavān sarvān nadīḥ kūpāṃśca sarvaśaḥ parvatānāṃ ca salilaṃ sarvamādāya raśmibhiḥ //
Then, with his rays, he drank up all the oceans, and everywhere the rivers and wells as well—drawing up all the waters, even the moisture of the mountains.
It describes a pralaya sign: the sun-like power draws up water from every source—oceans, rivers, wells, and even mountain moisture—indicating the world’s waters are being withdrawn as dissolution approaches.
Indirectly, it reinforces the Matsya Purana’s ethic of preparedness and right governance: when nature’s supports (water, fertility) fail, a king/householder must act with foresight—store resources, protect dependents, and follow dharma rather than panic or exploitation.
No direct Vastu or ritual rule is stated, but the emphasis on water scarcity supports Vastu-Shastra priorities in the Matsya Purana tradition—secure water sources (wells, tanks) and site planning that respects hydrology, especially for settlements and temples.