An intelligent person who understands the root cause of suffering in this world tries to cure the diseases at the root. Srila Prabhupada used to give the example that if the physical body is afflicted by an infection or boil, one can blow on the boil to try to temporarily mitigate the pain. But an expert physician knows that rather than to treat the symptom, one should go to the source of the problem. Therefore, he understands that there is a need to purify the blood.
July 1, 2012, BG 9.1, Dnepropetrovsk