इन्द्र , the bounteous and mighty deity, is venerated for vanquishing वृत्र , the obstructer of waters, using his thunderbolt. His prowess is praised as he restores the cosmos, liberating rivers and unveiling the sun. Assisted by the मरुत्स् , Indra's deeds affirm him as the celestial guardian, encircling the firmament and sustaining the heavens and earth [rv-1-52-1 ] rv • Book 1 .