Matsya Purana — Glory of Tīrtha-Śrāddha: Best Times
एतेषु पितृतीर्थेषु श्राद्धमानन्त्यमश्नुते तीर्थं मेघकरं नाम स्वयमेव जनार्दनः //
eteṣu pitṛtīrtheṣu śrāddhamānantyamaśnute tīrthaṃ meghakaraṃ nāma svayameva janārdanaḥ //
At these ancestral sacred fords (pitṛ-tīrthas), the performance of śrāddha yields inexhaustible merit. There is a holy ford named Meghakara, where Janārdana (Viṣṇu) Himself is present.
This verse does not describe pralaya; it emphasizes a ritual principle: performing śrāddha at designated pitṛ-tīrthas grants inexhaustible merit, with Viṣṇu’s sanctifying presence at Meghakara.
It supports the gṛhastha-dharma duty of honoring ancestors through śrāddha; for kings and householders alike, properly performed ancestral rites at sacred tīrthas are presented as a high-yield dharmic act.
The significance is ritual rather than architectural: pitṛ-tīrthas are specialized pilgrimage sites for śrāddha, and Meghakara is singled out as a Viṣṇu-sanctified tīrtha, implying heightened efficacy for ancestral offerings there.