Chapter 19: Prativyūha of the Pāṇḍavas — Vajra (Acala) Formation and Dawn Omens
वज्रो नामैष स व्यूहो निर्भय: सर्वतोमुख: । चापविद्युद्ध्वजो घोरो गुप्तो गाण्डीवधन्चना
vajro nāmaiṣa sa vyūho nirbhayaḥ sarvatomukhaḥ | cāpavidyuddhvajo ghoro gupto gāṇḍīvadhanvanā ||
Sanjaya said: “This battle-formation was called the ‘Vajra’ (Thunderbolt). It was fearless and faced in all directions. Terrible to behold, it bore a banner like lightning above a bow; and it was kept securely protected by Arjuna, the wielder of the Gāṇḍīva.”
संजय उवाच
The verse highlights how disciplined strategy (vyūha) and steadfast guardianship by a capable protector (Arjuna) create a force that is ‘fearless’ and resilient—suggesting that in dharmic warfare, courage is strengthened by order, preparedness, and responsible leadership.
Sanjaya reports to Dhṛtarāṣṭra about a specific battlefield arrangement named the Vajra-vyūha. He describes its all-directional readiness and terrifying appearance, and notes that it is being effectively guarded by Arjuna, identified by his famed bow, the Gāṇḍīva.