"Under the Sun of Satan" is a religious and philosophical novel by the French writer Georges Bernanos. In this book, the author reveals the eternal questions of good and evil, faith and doubt, the human soul and the fate of its relationship with God. The main character, a young priest, experiences spiritual trials and searches for a way to choose between human passions and divine mercy. Through internal contradictions and external trials, the hero tries to understand and accept the divine plan for his life. The book "Under the Sun of Satan" leaves the reader pondering and thinking about the complexity of moral problems and the eternal paradoxes of faith.