If the friends always waited until they were fully qualified to do any particular task, the work of the Cause would be almost at a standstill! But the very act of striving to serve, however unworthy one may feel, attracts the Blessings of God and enables one to become fitted for the task.
~ Shoghi Effendi
Source: From a letter dated May 4, 1942, to an individual believer. #73, The Power of Divine Assistance.