Thomas A Kempis focuses on his life as a monk. The book emphasizes the importance of self-discipline, controlling personal desires, and completely entrusting oneself to God's will, and highlights the importance of following the example of Jesus Christ in daily life. Kempis is believed to be the author, and the book has become one of the most widely loved Christian classics. Its core teaching is to imitate Christ, not just theoretically, but through concrete actions in daily life, including in the face of difficulties and emphasizes that faith must be expressed in concrete actions, not just in theory or thought.