This book contains letters of St. Theophan the Recluse, in which he answers the bewilderments and questions of many people who turned to him for advice, seeking his help and consolation. They also talk about the dogmas of the Orthodox Church, about heresies and attitude towards them, about the right and saving passage of spiritual life. The letters of Saint Theophanes are a living source of edification and spiritual benefit for every Christian on the path of salvation. This book will undoubtedly help modern Orthodox Christians to pass through the difficult stages of spiritual perfection to the main goal of our life - the salvation of their own soul.