Matsya Purana — Soma
अप्राप्ता यातनास्थानं प्रभ्रष्टा ये च पञ्चधा पश्चाद्ये स्थावरान्ते वै भूतानीके स्वकर्मभिः //
aprāptā yātanāsthānaṃ prabhraṣṭā ye ca pañcadhā paścādye sthāvarānte vai bhūtānīke svakarmabhiḥ //
Those who do not reach the places of torment, and those who have fallen away into the fivefold lower condition—afterwards, by their own actions, they enter the host of beings ending in the immobile forms (plants and the like).
It is not a Pralaya verse; it describes karmic consequence after death—some beings do not enter punitive hell-states and instead, through their deeds, fall into lower rebirths culminating in immobile (sthāvara) forms.
It reinforces the ethical core of the Matsya Purana: personal conduct and dharma directly shape one’s post-mortem trajectory. A king must govern justly and a householder must act righteously, since “svakarmabhiḥ” (one’s own deeds) determine degradation or uplift.
No Vāstu/temple rule is stated here; the ritual takeaway is moral and expiatory—wrong actions can lead to severe downward rebirth, so dharmic living and appropriate prāyaścitta (atonement) are implied safeguards.