Matsya Purana — Brahmā’s Four Faces
सविकारात् प्रधानात् तु महत् तत्त्वं प्रजायते महान् इति यतः ख्यातिर् लोकानां जायते सदा //
savikārāt pradhānāt tu mahat tattvaṃ prajāyate mahān iti yataḥ khyātir lokānāṃ jāyate sadā //
From Pradhāna, primordial Nature, when it becomes modified, the Mahat-tattva—the Great Principle, cosmic intelligence—is produced. It is called “Mahān” because from it the enduring notion and renown of greatness among beings continually arise.
It describes the forward creation sequence: when Pradhāna begins to transform, the first evolute is Mahat-tattva (cosmic intelligence). It is a cosmogonic (creation) step rather than a direct description of Pralaya.
Indirectly, it grounds dharma in a cosmic order: recognizing Mahat (intelligence/discernment) as primary supports the ideal that rulers and householders should act through buddhi—clear judgment, restraint, and principled governance—rather than impulse.
No direct Vāstu or ritual rule is stated; however, later Vāstu and ritual prescriptions in the Matsya Purāṇa presuppose this cosmology, where ordered creation begins with Mahat—symbolically aligning sacred construction and rites with cosmic intelligence and order.