सोम , the green-tinted, strength-bestowing, and exhilarating deity, flows as a divine beverage for the gods, notably benefiting the मरुत्स् and वायु , and ultimately proceeding to इन्द्र [rv-9-25-1 ] rv • Book 9 . As a purifying force, सोम , the seer and destroyer of foes, shines with the immortal gods and pervades all forms of existence [rv-9-25-3 ] rv • Book 9 .