In his teaching on prayer at the April 21 general audience, Pope Francis, who was once a literature teacher, recommended a book that could help us learn about vocal prayer.
The book is called The Way of a Pilgrim. It is the story of an anonymous pilgrim who travels across Russia.
This prayer is known as the Jesus prayer, and the Holy Father has recommended it on other occasions.
It is referenced in the Catechism, and the citation was noted in the general audience, in numbers 2616 and 2667.
The pontiff reflected that "in the end, [this prayer] becomes part of his breathing.”