This profound book by Leo Tolstoy delves into his mature reflections on the intertwined realms of religion, human reason, and philosophy. It represents a significant departure from his earlier literary works, offering a deep intellectual and spiritual inquiry into the nature of faith, morality, and the role of rational thought in understanding the divine. Tolstoy challenges conventional religious dogma, advocating for a universal, rational understanding of Christ's teachings stripped of institutional corruption. He critically examines the foundations of belief, urging readers to seek truth through personal conviction and ethical action rather than blind adherence. This work is essential for anyone interested in Tolstoy's later philosophical development and his relentless pursuit of a coherent, humane worldview.