The publication entitled "To an Unknown Child. Practical and contemplative messages (abstracts from correspondence letters)" is the Pskovo-Pechersky Monastery dedication to the beloved elder Archimandrite John (Krestiankin) (1910-2006). Brief quotes from the extensive corresponence legacy of Father John have made the 70 guidance messages of this book. All of them are driven by the elder's deep knowledge of man and contemporary life. The main undertaking of Father John was spiritual guidance bringing lost souls back to God, revealing the God's will to people. It was only the Church and trust in God that he saw as a way of revival for any person, the country and the world.

The publication is devoted to the 100th anniversary of the birth of Archimandrite John (Krestiankin).