Matsya Purana — Inquiry into Yayāti’s Story and the Kacha–Devayānī Episode
*शुक्र उवाच बृहस्पतेः सुतः पुत्रि कचः प्रेतगतिं गतः विद्यया जीवितो ऽप्येवं हन्यते करवाणि किम् //
*śukra uvāca bṛhaspateḥ sutaḥ putri kacaḥ pretagatiṃ gataḥ vidyayā jīvito 'pyevaṃ hanyate karavāṇi kim //
Śukra said: “O daughter, Kaca—the son of Bṛhaspati—had gone to the state of the dead; yet by my knowledge he was restored to life. Even so, he is again being slain—what am I to do?”
This verse does not address Pralaya; it focuses on mortal death, revival through mantra-knowledge (vidyā), and the repeated violence surrounding Kaca.
Indirectly, it highlights a dharmic warning: even powerful knowledge used to restore life can be undermined by envy and factional conflict—rulers and householders should restrain violence, protect guests/students, and prevent cycles of retaliation.
No Vāstu or temple-architecture rule is mentioned; the technical focus is on vidyā/mantra power (revival knowledge) and its consequences in a narrative setting.