Krsna also becomes very beautiful. He’s already beautiful. But when a devotee serves Him, a devotee comes to Him, He also becomes very beautiful. A devotee, when with his heart and soul, serves Krsna in dressing Him, in feeding Him, in giving Him flower, He becomes smiling. And if you can get Krsna once smiling upon you, your life is fulfilled.

[Srila Prabhupada; lecture on Srimad-Bhagavatam 3.25.12, Bombay, 12 November 1974]