The book "The Religion of the Samurai: A Study of Zen Philosophy and Discipline in China and Japan" by the famous Japanese author Kaiten Nukariya is an important work that explores the influence of Zen Buddhism on culture and spirituality in East Asia. The author considers the main principles of Zen Buddhism, their history and role in the formation of religious ideas among samurai warriors, whose actions and thinking were saturated with spirituality and morality. In his book, Nukariya analyzes the elements of Chinese philosophy embedded in Zen Buddhism and reveals their influence on Japanese society during the samurai era. He describes the meditation techniques, inner discipline, and practices that helped samurai develop a strong spiritual foundation in the harsh world of martial arts. The book will be useful for everyone who is interested in the history and philosophy of the Far East, as well as for those who are looking for answers to questions about the nature of man and his spirituality.