Matsya Purana — War of Devas and Asuras; Birth of Aurva Fire; Countering Tamasī Māyā through ...
तदासृजन्महामायां मयस्तां तामसीं दहन् युगान्तोद्योतजननीं सृष्टामौर्वेण वह्निना //
tadāsṛjanmahāmāyāṃ mayastāṃ tāmasīṃ dahan yugāntodyotajananīṃ sṛṣṭāmaurveṇa vahninā //
Then Maya produced that great delusive power—dark and stupefying—and, burning it with the Aurva-fire, he destroyed the very source that kindles the terrible blaze at the end of an age.
It links cosmic dissolution imagery to a “yugānta” blaze and portrays a dark, tamasic Mahāmāyā as a causal force associated with end-of-age devastation, which is then countered by the potent “Aurva-fire.”
Indirectly, it frames tamasic delusion as a destructive power; the ethical takeaway in the Matsya Purana’s dharma-teachings is to restrain ignorance and harmful impulses through disciplined, purifying means—parallel to a king’s duty to curb disorder and a householder’s duty to maintain sattvic conduct.
No direct Vāstu or iconographic rule is stated; the ritual subtext is the motif of purifying fire (vahni) as a force that burns away tamasic obstruction—an idea that later supports fire-centered rites (homa) and consecratory purification themes found elsewhere in the Purana.