Matsya Purana — Eclipse-Time Planetary Bath
नागपाशधरो देवः साक्षान्मकरवाहनः स जलाधिपतिश् चन्द्रग्रहपीडां व्यपोहतु //
nāgapāśadharo devaḥ sākṣānmakaravāhanaḥ sa jalādhipatiś candragrahapīḍāṃ vyapohatu //
May that divine Lord—bearing the serpent-noose, manifestly the rider of the Makara and sovereign of the waters—remove the affliction caused by the planet Moon (Candra).
This verse is not about pralaya; it functions as a graha-śānti prayer, invoking Varuṇa (lord of waters) to pacify the Moon’s planetary affliction.
It reflects the Purāṇic duty of maintaining order through prescribed rites: kings and householders address graha-pīḍā via sanctioned invocations and offerings to restore mental stability, health, and auspiciousness associated with Candra.
Ritually, it is a targeted Moon-affliction pacification (candra-graha-śānti) using deity-identification (Varuṇa as makaravāhana, jalādhipati). No specific Vāstu/temple-building rule is stated in this verse.