This book celebrates the life and ministry of Rev Dr Younghoon Lee, Senior Pastor of Yoido Full Gospel Church, Seoul, Korea. Two dozen international scholars, who are also close friends of Lee, contributed their studies. In view of his life—long commitment and ministerial practice, this book takes up the work of the Holy Spirit in spirituality and leadership. Thus, the book has two parts: The Holy Spirit and Spirituality and The Holy Spirit and Leadership.