Matsya Purana — Inquiry into Yayāti’s Story and the Kacha–Devayānī Episode
स तेनापृष्टो विद्यया चोपहूतः शनैर्वाचं जठरे व्याजहार तमब्रवीत्केन चेहोपनीतो ममोदरे तिष्ठसि ब्रूहि वत्स //
sa tenāpṛṣṭo vidyayā copahūtaḥ śanairvācaṃ jaṭhare vyājahāra tamabravītkena cehopanīto mamodare tiṣṭhasi brūhi vatsa //
Questioned by him and, as if summoned by Manu’s sacred knowledge, it slowly uttered speech from within its belly. It said to him: “By whom have you been brought here? You dwell in my stomach—tell me, dear one.”
It sets up the revelatory moment in the Pralaya narrative: the seemingly ordinary fish manifests divine agency by speaking, signaling that the coming deluge episode is guided by a higher power rather than mere chance.
Manu’s inquiry and the fish’s response highlight a dharmic posture: attentiveness, discernment, and respectful questioning when encountering the extraordinary—traits expected of a righteous ruler and disciplined householder.
No direct Vastu or temple-building rule appears in this verse; the ritual undertone lies in “vidyā” as sacred competence that ‘invokes’ revelation—an idea later echoed in Purāṇic ritual procedures where knowledge authorizes proper action.