Matsya Purana — The Episode of Madhu and Kaiṭabha: Gunas
ततस्तावाहतुर्गत्वा तदा देवं सनातनम् पद्मनाभं हृषीकेशं प्रणिपत्य स्थितावुभौ //
tatastāvāhaturgatvā tadā devaṃ sanātanam padmanābhaṃ hṛṣīkeśaṃ praṇipatya sthitāvubhau //
Then the two of them went to the eternal God—Padmanābha, Hṛṣīkeśa—and, bowing down in reverence, both stood there (before Him).
This verse does not describe pralaya or cosmology directly; it emphasizes devotional approach—going to the eternal Lord and offering prostration.
It models dharmic conduct: approaching the deity with humility (praṇipāta). For kings and householders, reverence to Vishnu and disciplined devotion are presented as foundational ethical posture.
Ritually, it highlights praṇipāta (prostration) and standing in attendance before the deity—core actions in temple darśana and pūjā sequences, though no specific Vāstu rule is stated.