August 28

He would not recommend fiction as a means of teaching; the condition of the world is too acute to permit of delay in giving them the direct teachings, associated with the name of Baha'u'llah. But any suitable approach to the Faith, which appeals to this or that group, is certainly worthy of effort, as we wish to bring the Cause to all men, in all walks of life, of all mentalities. [1] 
(From a letter dated 23 March 1945written on behalf of Shoghi Effendi to an individual believer; compilation on ‘Extracts from the Baha'i Writings on the Subject of Writers and Writing’ prepared by the Research Department of the Universal House of Justice, July 1980)
[1] This advice was given to a believer who sought the counsel of the Guardian on ways one might use writing skills to teach the Faith. The believer proposed writing a novel in which the Baha'i teachings and their source would be presented indirectly and in such a way as to stimulate curiosity and search by the reader.