three divisions of a sutra ［三分科経］ ( sambunka-kyō): Preparation, revelation, and transmission. A three-part format used in interpreting sutras, thought to have been formulated by Tao-an (312–385) of China. Preparation indicates the introductory portion of a sutra in which its purpose is clarified. Revelation, the main portion, contains the sutra’s central theme or teaching. Transmission is the concluding portion, which explains the benefit of the sutra and urges that the truth it contains be transmitted to the future.