Matsya Purana — Inquiry into Taraka’s Slaying and the Prelude to Guha
स्वयं सुष्वापानियता भाविनो ऽर्थस्य गौरवात् तत्तु रन्ध्रं समासाद्य जठरं पाकशासनः //
svayaṃ suṣvāpāniyatā bhāvino 'rthasya gauravāt tattu randhraṃ samāsādya jaṭharaṃ pākaśāsanaḥ //
By its own inherent tendency to flow downward—owing to the heaviness of the matter yet to form—(the substance) reaches that opening; and that aperture is called the “jaṭhara” (belly), the regulator of digestion/“cooking” (pākaśāsanaḥ).
This verse is not about cosmic pralaya; it uses a physical principle (heaviness causing downward movement toward an opening) to define a functional cavity/opening, reflecting the Matsya Purana’s technical, design-oriented explanations rather than dissolution theology.
Indirectly, it supports dharmic responsibility through correct construction and maintenance of sacred/ritual spaces: a king or householder who commissions a temple or image should follow precise functional specifications (openings, cavities, internal ‘belly’ zones) so worship and consecration are performed properly.
It defines a specific aperture (randhra) and identifies it functionally as a ‘jaṭhara’—a belly-like cavity—described as a regulator of ‘pāka’ (cooking/digestion), i.e., a technical designation for an internal functional zone in icon/structure anatomy used in Vastu/Pratima prescriptions.