Matsya Purana — Yayati’s Fall from Heaven and the Greatness of the Righteous
* इन्द्र उवाच सर्वाणि कार्याणि समाप्य राजन् गृहान्परित्यज्य वनं गतो ऽसि तत्त्वां पृच्छामि नहुषस्य पुत्र केनापि तुल्यस्तपसा ययाते //
* indra uvāca sarvāṇi kāryāṇi samāpya rājan gṛhānparityajya vanaṃ gato 'si tattvāṃ pṛcchāmi nahuṣasya putra kenāpi tulyastapasā yayāte //
Indra said: “O King, having completed all your duties and abandoning your home, you have gone to the forest. I ask you the truth, O son of Nahusha—O Yayāti, by what austerity (tapas) have you become equal to the greatest, unsurpassed by anyone?”
This verse does not discuss Pralaya; it focuses on a royal-ethical narrative where Indra questions Yayāti’s renunciation and the spiritual power (tapas) behind it.
It reflects the ideal sequence: a king fulfills worldly responsibilities (kāryāṇi) and then may renounce the household to go to the forest (vanaprastha), indicating a dharmic transition from governance to ascetic pursuit.
No Vāstu, temple architecture, or specific ritual procedure is mentioned; the key takeaway is the Purāṇic emphasis on tapas and life-stage renunciation rather than architectural rules.