Matsya Purana — Manvantaras
अव्यक्तादिविशेषान्तव् इकारे ऽस्मिन्निवर्तते चेतनाचेतनं ज्ञात्वा ज्ञाने ज्ञानी स उच्यते //
avyaktādiviśeṣāntav ikāre 'sminnivartate cetanācetanaṃ jñātvā jñāne jñānī sa ucyate //
From the Unmanifest up to the differentiated particulars, all this is resolved and comes to rest in this very principle; having discerned what is conscious and what is unconscious, one is called a knower, established in true knowledge.
It frames dissolution as a “return” of differentiated forms (viśeṣa) into a subtler ground (the unmanifest/underlying principle), emphasizing that wise insight sees how manifestation resolves back into its source.
It points to inner governance: alongside outer duties, a ruler or householder should cultivate viveka—clear discernment of the conscious self versus inert possessions/status—so action remains grounded in wisdom rather than attachment.
No direct Vāstu or ritual rule is stated; the takeaway is philosophical—ritual and construction are secondary to the discriminative knowledge (cetanā–acetanā viveka) that defines a true jñānī.