Matsya Purana — Rites for Consecrating and Celebrating Trees
भूतान्भव्यांश्च मनुजांस् तारयेद्द्रुमसंमितान् परमां सिद्धिमाप्नोति पुनरावृत्तिदुर्लभाम् //
bhūtānbhavyāṃśca manujāṃs tārayeddrumasaṃmitān paramāṃ siddhimāpnoti punarāvṛttidurlabhām //
過去の人々と未来に来たる人々とを、樹木の数に等しいほど救い渡し(安穏とより高き善へと導く)者は、再び還りの輪が動き出したのちには得難い、最高の霊的成就を得る。
It frames Pralaya-era teaching as a liberation doctrine: the highest fruit is not merely survival through dissolution, but attaining a state beyond punarāvṛtti (return/rebirth) through compassionate deliverance of others.
It elevates social protection into a soteriological duty: a ruler or householder who ‘causes many to cross over’—by protection, charity, guidance, or rescue—earns supreme merit culminating in rare spiritual perfection.
No direct Vastu/temple rule appears; the operative ritual idea is “tāraṇa” (deliverance), a merit-bearing act often linked in Purāṇic ethics with dāna, protection, and guidance rather than construction.