Matsya Purana — The Array of the Gods: Description of the Vaiṣṇava Host and the Lokapālas
विष्णोर्जिष्णोश्च भ्राजिष्णोस् तेजसा तमसावृतम् बलं बलवदुद्वृत्तं युद्धाय समवर्तत //
viṣṇorjiṣṇośca bhrājiṣṇos tejasā tamasāvṛtam balaṃ balavadudvṛttaṃ yuddhāya samavartata //
Then the mighty, surging force—wrapped in darkness yet blazing with radiance—of Viṣṇu, the unconquered and the resplendent One, gathered itself together for battle.
It does not describe pralaya directly; instead, it uses cosmic imagery (tejas veiled by tamas) to depict divine power concentrating before conflict—language often associated with the same guṇic forces that operate in creation and dissolution.
By portraying “bala” as disciplined and purpose-directed (“yuddhāya samavartata”), the verse implies that strength is ethical when gathered for rightful protection—an ideal echoed in rājadharma where power must be organized, not impulsive.
No explicit Vāstu or ritual procedure appears; the key takeaway is symbolic—tejas (radiance) and tamas (obscuring darkness) are invoked as theological aesthetics rather than temple-planning rules.