Bhagavatapurana 10.70.43

43. "The out-caste people get purified by listening to Thy stories, by uttering Thy names and contemplating Thee and then it needs no saying that those that are purified directly with their eyes see Thee, the very Perfect One, O Lord.

44. "Thy wide spread glory, absolutely pure, a canopy as it were of all the cardinal points, O one most auspicious for the Universe, pervades the heavens, the earth and Rasatala, purifies the world; also the water flowing from Thy feet purifies it under the name of Mandakini in the celestial region, Bhogavati in Rasatala and Ganga on this earth.