Saint Theophan, the Recluse of Vyshensky (1815-1894), left a rich spiritual and literary heritage. A special place in the writings of the Right Reverend Theophan is occupied by his letters to various people, often laymen, seeking salvation in Christ. They represent the answer to the many problems of his spiritual children, which stem from one single question: “What is spiritual life and how to tune in to it?” This is the main life question at all times, it also faces Christians of our days. The letters cited in the proposed edition are written by Bishop Theophan to a young girl, “who doesn’t want to get married, but hasn’t even gathered the courage to go to a monastery.” These letters are a frank and detailed description of a person's inner life. It is amazing how Saint Theophan sensitively grasps the spiritual needs of the writer, cordially and patiently explains all questions and perplexities, and gives guidance on the spiritual order of life in the world. He speaks of the need for renewal and self-purification through aversion from sin, struggle with passions, repentance, prayer and reunification with God for the salvation of the soul. These written advice and instructions, imbued with fatherly love, saved many from spiritual death and revived many to a new life; They even now strengthen our spiritual zeal, direct us to the path of truth, promote perfection in the knowledge of God and a God-pleasing life, and give us hope for salvation.