इन्द्र , accompanied by the valiant अङ्गिरसस् , shatters the demon वल to release the dawn for कुत्स , thwarting the schemes of अहि . He unleashes the rivers, splits mountains, and brings forth cows, quaffs Soma, and invigorates the forest as the sun dazzles. Indra bravely defeats पिप्रु , secures celestial wealth, and establishes cosmic order by vanquishing वृत्र [rv-10-138-1 ] rv • Book 10 .