Matsya Purana — Uma’s Austerities and the Slaying of the Deceiver Asura ĀḌi
तदा मृत्युर्मम भवेद् अन्यथा त्वमरो ह्यहम् इत्युक्तस्तु तदोवाच तुष्टः कमलसंभवः //
tadā mṛtyurmama bhaved anyathā tvamaro hyaham ityuktastu tadovāca tuṣṭaḥ kamalasaṃbhavaḥ //
“Then let death be mine; otherwise you would be immortal while I am (mortal).” Thus addressed, the Lotus-born (Brahmā), being pleased, spoke in reply.
It reflects a cosmological principle: even extraordinary boons are framed to preserve order—mortality is asserted as a necessary boundary so the world’s cycle (including dissolution and renewal) is not disrupted by unchecked immortality.
It teaches restraint and fairness in power: like conditional boons, authority should be bounded by dharma—privilege must not become an exemption from accountability, and social order depends on accepting limits.
No direct Vāstu or temple-ritual rule is stated; the ritual takeaway is thematic—boons and rites are ideally performed with dharmic safeguards so outcomes do not violate cosmic balance.