Prabhupada:
prayascittani cirnani narayana-paranmukham na nispunanti rajendra sura-kumbham ivapagah (SB 6.1.18)
Ivapagah. So here is one significant word, sura-kumbham. Everything is washed very nicely. If you go to the river, you can wash very nicely. But just see how much infectious is liquor that the any pot or any bottle which was filled up with liquor, they cannot be purified. This is Vedic civilization. How much condemned is liquor! Because a pot was filled up with liquor, you cannot use it for any other purpose. It is lost. Even if you wash it very nicely, no, it will not be accepted. Finished. Similarly, there are many processes of purification; they cannot be as useful as bhagavad-bhakti. Bhagavad-bhakti is so nice that Krsna says that "You surrender to Me," sarva-dharman parityajya, "and immediately you become immune from all reaction of sinful activity. Immediately."