Matsya Purana — The Attendant Hosts of the Sun and Moon: Monthly Gaṇas
संगृहीता रथे तस्मिञ् छ्वेतश्चक्षुःश्रवाश्च वै अश्वास्तमेकवर्णास्ते वहन्ते शङ्खवर्चसः //
saṃgṛhītā rathe tasmiñ chvetaścakṣuḥśravāśca vai aśvāstamekavarṇāste vahante śaṅkhavarcasaḥ //
Harnessed to that chariot are the horses Śveta and Cakṣuḥśravas; those steeds, all of one hue, draw it—radiant with the lustre of a conch-shell.
It does not describe cosmic dissolution directly; it adds vivid, auspicious imagery (a conch-radiant chariot drawn by uniform-colored horses) to the broader Pralaya-era Matsya–Manu narration.
Indirectly, it models royal/divine order and auspicious symbolism—suggesting that leadership aligned with dharma is accompanied by discipline, unity (ekavarṇa), and śrī-like radiance—though no explicit kingly duty is stated here.
No Vāstu rule is stated, but the phrase śaṅkha-varcasaḥ carries ritual-auspicious connotations (conch imagery linked with purity and sanctity), useful for interpreting iconographic and ceremonial descriptions in the text.