The Soma flows like mighty rivers, rushing to the pitcher as drops fall like rain for इन्द्र , invigorating and sanctifying sacrifices, destroying evil ( राक्षसस् ) and exalting the gods [rv-9-17-1 ] rv • Book 9 . It extends beyond realms, illuminating and driving celestial bodies [rv-9-17-5 ] rv • Book 9 . Sages, seeking sustenance, purify the Soma in sacred rites, amplifying its praises [rv-9-17-6 ] rv • Book 9 .