I am very much anxious that at the same time as you carry out all these outside activities you are maintaining a strict schedule of Temple activities. Such regular activities like attendance of Arati, chanting of rounds, study of literatures in the class will keep you fit for effective preaching work in the outer field. Our standard of purity must be kept, otherwise there will be loss of spiritual strength, and subsequent fall down.
(From Srila Prabhupada's letter to Damodara — Allahabad India 10 January 1971)