Matsya Purana — Yadu Lineage
यास्याम्यहं महादेवं मन्त्रार्थं विजयावहम् अप्रतीपांस्ततो मन्त्रान् देवात्प्राप्य महेश्वरात् युध्यामहे पुनर्देवांस् ततः प्राप्स्यथ वै जयम् //
yāsyāmyahaṃ mahādevaṃ mantrārthaṃ vijayāvaham apratīpāṃstato mantrān devātprāpya maheśvarāt yudhyāmahe punardevāṃs tataḥ prāpsyatha vai jayam //
“I shall go to Mahādeva to obtain the purport of a victory-bestowing mantra. Then, having received from Maheśvara those mantras that render the opponents powerless, we shall fight the gods again; and then you will surely attain victory.”
This verse does not address pralaya; it focuses on a wartime strategy—seeking Śiva (Mahādeva) for mantras that ensure victory in conflict.
Indirectly, it reflects the Purāṇic idea that success in governance and conflict depends on counsel, sacred knowledge, and alliances; however, it is primarily a martial-mythic instruction rather than household dharma.
The ritual significance lies in mantra-siddhi: obtaining the ‘meaning and power’ of mantras from a deity (Śiva) to neutralize opposition—an example of mantra as a sanctioned sacred technology in Purāṇic practice, not Vāstu or temple-building rules.