Matsya Purana — The Madana-Dvādaśī Vow and the Birth of the Maruts
वज्रेण सप्तधा चक्रे तं गर्भं त्रिदशाधिपः ततः सप्तैव ते जाताः कुमाराः सूर्यवर्चसः //
vajreṇa saptadhā cakre taṃ garbhaṃ tridaśādhipaḥ tataḥ saptaiva te jātāḥ kumārāḥ sūryavarcasaḥ //
The Lord of the Thirty (Indra) split that embryo into seven parts with his thunderbolt (vajra); from it, seven radiant sons were born—boys blazing with the splendour of the sun.
This verse is not a Pralaya (dissolution) teaching; it narrates a divine birth episode—Indra’s thunderbolt action results in seven radiant sons, reflecting the Purana’s theme of cosmic order maintained through divine interventions.
Indirectly, it upholds the idea that rulers must protect order and act decisively when cosmic or social stability is threatened—Indra’s role as tridaśādhipa models protective sovereignty, a key ethical template echoed in Matsya Purana’s kingship ideals.
No direct Vastu or temple-architecture rule is stated here; ritually, the imagery of vajra (thunderbolt) and solar radiance is often invoked in protective and energizing contexts, aligning with broader Purāṇic symbolism used in rites for strength and safeguarding.