So, why do we take medicines? We are depending on Krishna, but he gives us body that is subjected to disease; ultimately Krishna can work through the medicines or not work through the medicines. And when Srila Prabhupada was sick, he called doctor Kaviraj and even if it int work, He would say ‘a blind uncle I better than no uncle at all.’ It is just a ritual of this world that when you are sick, you have to take medicine. But he was depending on Krishna but still, you have to try. When Kamsa was about to kill Devaki, ultimately it was in Krishna's hands whether Devaki lives or dies but still Vasudev did everything within his power to protect her. That was his duty. He made so many philosophical arguments, so many social arguments, so many promises. He was a pure devotee. So, a devotee must be ideal in example and devotee must live exemplary within society.