Matsya Purana — The Array of the Gods: Description of the Vaiṣṇava Host and the Lokapālas
स वायुः सर्वभूतायुर् उद्भूतः स्वेन तेजसा ववौ प्रव्यथयन्दैत्यान् प्रतिलोमं सतोयदः //
sa vāyuḥ sarvabhūtāyur udbhūtaḥ svena tejasā vavau pravyathayandaityān pratilomaṃ satoyadaḥ //
That Wind—the very life-breath of all beings—arose by its own fiery power and began to blow, violently afflicting the Daityas, driving the waters to surge in a contrary (reverse) course.
It portrays pralaya as a cosmic upheaval where the life-wind (vāyu) erupts with tejas and reverses natural flows—waters surge unnaturally and hostile forces like the Daityas are shaken and scattered.
Indirectly, it underscores impermanence and the fragility of worldly order; in the Matsya Purana’s ethical frame, kings and householders should govern and live by dharma with preparedness and restraint, knowing nature and fate can overturn stability.
No direct vastu/ritual rule is stated; the takeaway is contextual—pralaya imagery explains why temples and rites emphasize cosmic order (ṛta) and protective consecrations, aiming to stabilize space against disorder.