In Introduction to the Devout Life, 17th-century French clergyman Francis de Sales addresses himself to the mass of Christians who do not believe it possible that they could live a devout life while also struggling to make their way in the world. He contends that devotion is not a state necessarily relegated to monks in cloisters, but can be a quality of life to which everyone can aspire. Accordingly, the book is arranged as a self-help guide to lead the reader through the process of developing a life lived in accordance with God.

Christians seeking a deeper connection with the divine will...