Indra is invoked to grant protection, abundant wealth, and victory over foes in battle, whether through hand-to-hand combat or cavalry [rv-1-8-1 ] rv • Book 1 . With Indra's backing, victory through a powerful weapon is assured, and giant armies become invincible [rv-1-8-3 ] rv • Book 1 . Indra aids in gaining offspring and wisdom, and his devotion brings promises as fruitful as heavy-laden branches [rv-1-8-6 ] rv • Book 1 .