So Krishna will help you, but you must show Him that you want His help, by praying and chanting. Chanting Hare Krishna means "O Lord, energy of the Lord, please engage me in your service". Krishna will certainly reciprocate with one who chants with sincerity. But without chanting it is virtually impossible to develop the required devotional mentality to gain Krishna's favor.
November 26, 1986, Letter to Elise