Matsya Purana — The Episode of Madhu and Kaiṭabha: Gunas
अमोघदर्शनः स त्वं यतस्त्वां विद्वः शाश्वतम् ततस्त्वामागतावावाम् अभितः प्रसमीक्षितुम् //
amoghadarśanaḥ sa tvaṃ yatastvāṃ vidvaḥ śāśvatam tatastvāmāgatāvāvām abhitaḥ prasamīkṣitum //
Your vision is never in vain; for the wise know you to be eternal. Therefore we have come to you, from every side, to behold you clearly.
It frames the Pralaya episode as guided by the eternal Lord: the wise seek his unfailing vision, implying divine oversight before cosmic dissolution.
It models the ideal ruler/householder’s humility—approaching the eternal truth for clear guidance—before taking decisive action in times of crisis.
No direct Vastu or ritual rule is stated; the key takeaway is the ritual-theological emphasis on darśana (clear beholding) as a source of auspicious certainty.