This book traces the historical and theological development of the Holy Spirit movement in Korea through six successive periods. These periods are characterized by repentance and revival (1900-1920), persecution and suffering under Japanese occupation (1920-1940), confusion and division (1940-1960), explosive revival in which the Pentecostal movement played a major role in the rapid growth of Korean churches (1960-1980), the movement's reaching out to all denominations (1980-2000), and the new context's demanding the Holy Spirit movement to open new horizons in its mission engagement (2000-). The volume also discusses the relationship between this movement and other religions such as shamanism, and looks forward to further engagement with issues of concern in the larger society.