Matsya Purana — Genealogy and Classification of Sacred Fires
विविधाग्निस्ततस्तस्य तस्य पुत्रो महाकविः विविधाग्निसुतादर्काद् अग्नयो ऽष्टौ सुताः स्मृताः //
vividhāgnistatastasya tasya putro mahākaviḥ vividhāgnisutādarkād agnayo 'ṣṭau sutāḥ smṛtāḥ //
From him was born Vividhāgni; and from Vividhāgni came his son, the great sage-poet Mahākavi. From Arkā, the son of Vividhāgni, eight sons are remembered, known collectively as the Agnis.
This verse does not discuss Pralaya; it preserves a genealogical succession, emphasizing how Purāṇas transmit sacred memory through lineages.
Indirectly, it supports the Purāṇic ideal that rulers and householders safeguard lineage records and honor ancestral transmission (smṛti) as part of dharma and social continuity.
No Vāstu or ritual procedure is specified here; the technical focus is genealogical classification—naming a group of eight descendants called the Agnis.