"The Cathedral" is a historical novel that tells the story of the ancient city of Kyiv, Ukraine and its people from the 17th century to the 20th century. The narrative focuses on the city's cathedral, which serves as a symbol of the city's spirit and resilience, and the various characters who are connected to it throughout the centuries. The novel explores themes of national identity, the struggle for independence, and the impact of war and political upheaval on individuals and communities.

This book presents a series of sermons that challenge the traditional religious understanding of the time. The author argues that the word of God should not be confined to the Bible alone, but should also include the divine revelation through Jesus Christ. He emphasizes the importance of faith and the need for a personal relationship with God, while criticizing the church for its institutionalization and its focus on rituals and dogma. The book is considered a cornerstone in the development of neo-orthodox theology.