Matsya Purana — Inquiry into Taraka’s Slaying and the Prelude to Guha
तत्प्राप्तं वह्निवदने रेतो देवानतर्पयत् विदार्य जठराण्येषाम् अजीर्णं निर्गतं मुने //
tatprāptaṃ vahnivadane reto devānatarpayat vidārya jaṭharāṇyeṣām ajīrṇaṃ nirgataṃ mune //
O sage, when that seed reached the mouth of Fire, it did not satisfy the gods; tearing open their bellies, it came out undigested.
It is not a Pralaya (dissolution) description; it is a mythic causal episode illustrating how a powerful generative essence cannot be ‘assimilated’ even by the gods, pointing to cosmic forces that exceed ordinary containment.
Indirectly, it reinforces the Purāṇic ethic of restraint and proper containment of power/impulse: what is not ‘digested’ (assimilated through dharma and discipline) becomes disruptive—an idea later applied to self-control, ritual propriety, and governance.
No direct Vāstu or temple rule is stated; ritually, the verse foregrounds Agni and ‘tarpana’ (satisfaction/propitiation), highlighting that offerings and energies must be correctly handled and transformed, a principle underlying many Agni-centered rites.