Matsya Purana — Vishnu’s Names Across Yugas and the Gods’ Refuge During the Tārakāmaya War
दीप्ततोयाशनिपनैर् वज्रवेगानलानिलैः रवैः सुघोरैरुत्पातैर् दह्यमानम् इवाम्बरम् //
dīptatoyāśanipanair vajravegānalānilaiḥ ravaiḥ sughorairutpātair dahyamānam ivāmbaram //
With blazing torrents, crashing thunder and lightning, winds swift as a thunderbolt, and the rush of fire and storm—amid dreadfully terrifying roars and ominous prodigies—the very sky seemed as though it were being consumed by flames.
It depicts pralaya-like conditions through violent, unnatural atmospheric upheavals—portents (utpāta) and a sky that appears to burn—signaling a breakdown of cosmic order.
By highlighting ominous public calamities and portents, it implies the need for vigilance, protective governance, and timely ritual/ethical response—core expectations of a king and a responsible householder in Purāṇic dharma.
No direct Vāstu rule is stated; the key ritual takeaway is the prominence of utpāta (ominous signs), which traditionally prompt expiatory rites (śānti/pravāyaścitta) to restore auspiciousness.