Matsya Purana — The Greatness of Prayaga and Allied Tirthas
तपनस्य सुता देवी त्रिषु लोकेषु विश्रुता यमुना गङ्गया सार्धं संगता लोकभाविनी //
tapanasya sutā devī triṣu lokeṣu viśrutā yamunā gaṅgayā sārdhaṃ saṃgatā lokabhāvinī //
The goddess Yamunā, daughter of Tapana (the Sun), renowned throughout the three worlds, unites with the Gaṅgā, the benefactress of the world.
This verse is not about Pralaya; it belongs to sacred-geography praise, highlighting Yamunā’s divine origin and her auspicious union with the Gaṅgā.
It supports the Purāṇic ethic of dharmic living through honoring tīrthas—kings protect pilgrimage routes and riverbanks, while householders gain merit through reverence, bathing, charity, and restraint at sacred rivers and confluences.
Ritually, it points to the sanctity of a river-confluence (sangam), a prime locus for snāna (sacred bathing), tarpaṇa, and dāna; architecturally, such sangams often justify establishing ghāṭas and shrines due to their high tīrtha-status.