Matsya Purana — Solar Dynasty Prelude: Vivasvān–Saṃjñā–Chāyā
किलान्विषन् वने तस्मिन् नाजुहाव स तामिलाम् बहिर् वनस्यान्तरितः किल पादपमण्डले //
kilānviṣan vane tasmin nājuhāva sa tāmilām bahir vanasyāntaritaḥ kila pādapamaṇḍale //
While searching in that forest, he did not call out to Ilā. Remaining outside the forest, he stayed concealed, it is said, within a circle of trees.
This verse is not about pralaya; it narrates a forest episode where the man refrains from calling Ilā and remains concealed among trees.
It suggests restraint and deliberation—acting cautiously rather than impulsively—an ethic often applied to kingship and household conduct in Purāṇic instruction.
No explicit Vāstu or ritual procedure is taught here; the only technical nuance is the term maṇḍala, used descriptively as a ‘circle/cluster’ of trees rather than a ritual diagram.