Matsya Purana — The Slaying of Jambha and the Rise of Tāraka: Divine Battle Formations
आयान्तीम् अवलोक्याथ सुरसेनां गजासुरः गजरूपी महाम्भोदसंघातो भाति भैरवः //
āyāntīm avalokyātha surasenāṃ gajāsuraḥ gajarūpī mahāmbhodasaṃghāto bhāti bhairavaḥ //
Then, seeing the army of the gods advancing, Gajāsura—having assumed the form of an elephant—appeared terrifying, like a dense mass of towering storm-clouds.
It does not describe Pralaya directly; it uses storm-cloud imagery to convey overwhelming, ominous power—an aesthetic common in Purāṇic narration rather than a cosmological dissolution account.
Indirectly, it models a Purāṇic ethical lens on conflict: formidable opponents may appear invincible, yet dharma-aligned forces must proceed with steadiness—an implied lesson for rulers facing threats.
No Vāstu or ritual procedure is stated; the verse is primarily a battlefield description highlighting form-assumption (rūpa) and fearsome appearance through a cloud-mass simile.