Matsya Purana — Planetary Chariots
ततः केतुमतस्त्वश्वा अष्टौ ते वातरंहसः पलालधूमवर्णाभाः क्षामदेहाः सुदारुणाः //
tataḥ ketumatastvaśvā aṣṭau te vātaraṃhasaḥ palāladhūmavarṇābhāḥ kṣāmadehāḥ sudāruṇāḥ //
Then, from Ketumat there arose eight horses, swift as the wind—of the color of chaff-smoke, gaunt-bodied, and exceedingly dreadful.
It depicts a specific pralaya-omen: the sudden manifestation of eight wind-swift, ashen-colored, gaunt and terrifying horses—imagery signaling destabilization of the cosmic order and the approach of dissolution.
As a pralaya-portent passage, it functions as a warning motif: rulers and householders are urged (in the broader Purāṇic ethic) to uphold dharma, practice restraint, and prepare spiritually—since worldly security is shown to be fragile when cosmic upheaval approaches.
No direct Vāstu or temple-building rule is stated in this verse; its ritual takeaway is indirect—ominous signs like these traditionally prompt expiatory rites, heightened worship, and protective observances described elsewhere in Purāṇic practice.