Matsya Purana — Narasimha’s Victory over Hiraṇyakaśipu and the Catalogue of Apocalyptic Omens
तानि चक्राणि वदने विशमानानि भान्ति वै मेघोदरदरीष्वेव चन्द्रसूर्यग्रहा इव //
tāni cakrāṇi vadane viśamānāni bhānti vai meghodaradarīṣveva candrasūryagrahā iva //
Those discus-emblems, set upon the face, indeed shine forth—like the moon, the sun, and the planets appearing within the clefts of cloud-filled ravines.
This verse is not about Pralaya; it uses a cosmic simile (moon, sun, planets amid clouds) to convey how brilliantly the cakra-emblems appear on the deity’s face.
Indirectly, it supports dharmic practice through correct worship: kings and householders are encouraged to commission and venerate properly marked divine images, strengthening public piety and auspicious order.
It belongs to pratima-lakṣaṇa (idol-specification): the placement and visual effect of sacred emblems (cakra-marks) are described so sculptors and ritualists can identify and install an image with correct auspicious features.