Andrey Bely (Андрей Белый, 1880-1934) was one of the outstanding Russian symbolist writers. A. Bely's literary works were inseparably related to his absorption and transition of religious thought. In the early 20th century he was engrossed in religious sects in Russia, and regarded the gathering mode of sects as the blueprint of Russian future development. However, after his disappointment with sects, Bely was attracted to Rudolf Steiner's (1861-1925) concept of Initiation in Rosicrucianism, and actively involved in the research of theosophy and anthroposophy. In "The Silver Dove", A. Bely turned down the idea that religious sects could save Russia, and affirmed the Initiation in implicit plots. In this article, author firstly outlines the origin, history and object of Rosicrucianism and the Theosophical Society. Then author discusses the idea of dark East in "The Silver Dove", and explores the process and the meaning of main character's unsuccessful Initiation