Matsya Purana — The Attendant Hosts of the Sun and Moon: Monthly Gaṇas
इत्येते नामभिश्चैव दश चन्द्रमसो हयाः एवं चन्द्रमसं देवं वहन्ति स्मायुगक्षयम् //
ityete nāmabhiścaiva daśa candramaso hayāḥ evaṃ candramasaṃ devaṃ vahanti smāyugakṣayam //
Thus, these are the ten horses of the Moon, known by their respective names; in this very manner they bear the Moon-god onward—enduring until the close of the age (yuga).
It does not narrate pralaya directly; it frames cosmic continuity by stating the Moon’s ordained motion persists “until yugakṣaya,” implying the stability of celestial order across an age-cycle before larger dissolution phases.
Indirectly, it supports the Purāṇic ethic of ṛta (cosmic order): just as the Moon’s course is regulated, kings and householders are expected to uphold regularity—calendrical observances, vows, and time-bound duties aligned with lunar timekeeping.
Ritually, the Moon’s regulated movement underpins lunar months and tithis used for vrata, śrāddha, and festival timing; architecturally, no Vāstu rule is stated here, but the verse supports the broader temple-ritual calendar based on lunar reckoning.