During the rainy season, all living entities in the land, sky and water become very much refreshed, exactly like one who engages in the transcendental loving service of the Lord. We have practical experience of this with our students in the International Society for Krishna Consciousness. Before becoming students, they were dirty-looking, although they had naturally beautiful personal features; due to having no information of Krsna consciousness they appeared very dirty and wretched. Since they have taken to Krsna consciousness, their health has improved, and by their following the rules and regulations, their bodily luster has increased. When they are dressed with saffron-colored cloth, with tilaka on their foreheads and beads in their hands and on their necks, they look exactly as if they have come directly from Vaikuntha.

Srila Prabhupada, Krsna Book Chapter 20