Matsya Purana — Solar–Lunar Motions
वैवस्वते संयमने मध्याह्ने तु रविर्यदा सुषायामथ वारुण्याम् उत्तिष्ठन्स तु दृश्यते //
vaivasvate saṃyamane madhyāhne tu raviryadā suṣāyāmatha vāruṇyām uttiṣṭhansa tu dṛśyate //
In Vaivasvata’s Saṃyamana, when it is midday and the Sun is there, he is seen rising in Suṣāyā—also called Vāruṇī (the channel or stream).
This verse is not a pralaya (dissolution) passage; it instead gives a cosmological note about the Sun’s visible ascent at Saṃyamana through named channels (Suṣāyā/Vāruṇī).
Indirectly, it supports Purāṇic worldview and ritual timing: references to midday and the Sun’s course underpin auspicious time-reckoning (muhūrta) used by householders and rulers for rites, governance decisions, and public ceremonies.
Ritually, “madhyāhna” (midday) is a key sandhi for daily observances and offerings; the verse anchors that timing in a Purāṇic cosmic geography (Saṃyamana, Suṣāyā/Vāruṇī), which can be cited in Matsya Purana ritual-timing discussions rather than direct Vāstu rules.