Matsya Purana — Tripura’s Prosperity
संध्याकालं प्रविष्टास्ते त्रिपुरं च भयावहाः समध्यासुः समं घोराः शरीराणि यथामयाः //
saṃdhyākālaṃ praviṣṭāste tripuraṃ ca bhayāvahāḥ samadhyāsuḥ samaṃ ghorāḥ śarīrāṇi yathāmayāḥ //
Entering at twilight, those fearsome beings entered Tripura; all alike—terrible in aspect—they assumed bodies, as though fashioned according to their own afflictive nature.
This verse does not describe cosmic pralaya; it depicts a localized, ominous transformation—fearsome beings entering Tripura at the liminal time of sandhyā and assuming dreadful bodies.
By highlighting sandhyā (twilight) as a charged, transitional time, it indirectly supports the Purāṇic ethic of vigilance and disciplined conduct at dawn/dusk—times traditionally reserved for restraint, prayer, and protective rites rather than negligence.
The explicit ritual marker is sandhyā-kāla (twilight), a key timing in rites; while no Vāstu rule is stated, the verse uses Tripura (a fortified ‘city’) as a narrative setting where liminal time intensifies danger—useful for SEO themes like “Matsya Purana ritual time (sandhya) significance.”