"The poet in this hymn supplies Indra to give support to those who drive away the evil and spread the light throughout the World (i.e. to the Aryan.) This spreading of light is a frequent motif in Rgvedic hymns ... Here, too, light is the antithesis to darkness. Soma, after all, is often called ‘shining golden, white, bright, goldencoloured {suklavarna) or ‘bringer of light’... (By the way, only at this place dasyu and krsna tvac really occur together in one sentence)."