April 1

He heartily agrees with you that unless we practise the Teachings we cannot possibly expect the Faith to grow, because the fundamental purpose of all religions -- including our own -- is to bring man nearer to God, and to change his character, which is of the utmost importance. Too much emphasis is often laid on the social and economic aspects of the Teachings; but the moral aspect cannot be over- emphasized. 
(From a letter dated 6 September 1946 written on behalf of Shoghi Effendi to an individual believer; The Compilation of Compilations, vol. I, A Chase and Holy Life)