Matsya Purana — The Battle for Tripura: Portents
ईश्वरा मोदिताः सर्व उत्पेतुश्चाम्बरे तदा खगतास्तु विरेजुस्ते पक्षवन्त इवाचलाः //
īśvarā moditāḥ sarva utpetuścāmbare tadā khagatāstu virejuste pakṣavanta ivācalāḥ //
Then all the divine lords, filled with joy, rose up into the sky; and those beings moving through the air shone forth—like mountains endowed with wings.
It does not directly describe Pralaya; it paints a celestial, auspicious scene where the gods rise into the sky and shine, suggesting heightened cosmic activity or a significant divine moment.
Indirectly, it reinforces a Purāṇic theme: when divine order is pleased or restored, the cosmos appears radiant—an ideal a king supports through dharma (protection, justice, ritual patronage).
No explicit Vāstu or ritual rule is stated; however, the imagery of “winged mountains” echoes Purāṇic symbolism often used in temple lore (mountain-as-cosmic-axis), useful for interpreting later iconography and sacred geography passages.