Matsya Purana — Prayaga Mahatmya Begins: Yudhishthira’s Remorse
व्यासं कथमहं पृच्छे यस्य गोत्रक्षयः कृतः एवं वैक्लव्यमापन्नो धर्मराजो युधिष्ठिरः रुदन्ति पाण्डवाः सर्वे भ्रातृशोकपरिप्लुताः //
vyāsaṃ kathamahaṃ pṛcche yasya gotrakṣayaḥ kṛtaḥ evaṃ vaiklavyamāpanno dharmarājo yudhiṣṭhiraḥ rudanti pāṇḍavāḥ sarve bhrātṛśokapariplutāḥ //
“How can I question Vyāsa—he by whom the destruction of the lineages has been brought about?” Thus, overcome with helpless distress, King Yudhiṣṭhira, the upholder of dharma, lamented; and all the Pāṇḍavas wept, submerged in sorrow for their brother.
This verse does not address cosmic pralaya; it depicts a human-scale ‘dissolution’—the collapse of family lineages (gotra-kṣaya) and the moral-emotional aftermath of war.
It highlights the king’s dharmic burden: even a righteous ruler like Yudhiṣṭhira is shaken when actions lead to lineage-destruction, underscoring accountability, remorse, and the need for counsel (from sages) in restoring order after catastrophe.
No Vāstu/temple-architecture rule is mentioned; the ritual takeaway is indirect—grief and clan-loss typically prompt śrāddha and expiatory rites in Purāṇic ethics, though this specific verse focuses on lamentation.