Matsya Purana — Mahāgaurī’s Entry
तेनापूर्यत तान्देवांस् तत्तत्कायविभेदतः विपाट्य जठरं तेषां वीर्यं माहेश्वरं ततः //
tenāpūryata tāndevāṃs tattatkāyavibhedataḥ vipāṭya jaṭharaṃ teṣāṃ vīryaṃ māheśvaraṃ tataḥ //
By that (power), those Devas were filled—each according to the division of his own body; then, splitting open their bellies, the Maheshvara-born potency (vīrya) issued forth from them.
It uses a stark mythic physiology—Devas being “filled” with a force and then releasing it—to depict cosmic power as something that can be infused, redistributed, and expelled, a common Purāṇic way of describing transformative phases around dissolution and re-manifestation.
Indirectly, it reinforces the Purāṇic ethic that power (vīrya/śakti) must be properly contained and directed according to one’s nature (kāya-vibheda). In the wider Matsya Purāṇa, this principle parallels kingly self-restraint and disciplined stewardship of strength rather than uncontrolled force.
No direct Vāstu or temple-building rule appears in this verse; its ritual takeaway is conceptual—divine “potency” is treated as a transferable sacred substance, a notion that underlies many Purāṇic ritual imaginations of consecration, infusion (āveśa), and controlled release.