Henry Müller's Hours of Spiritual Refreshment was one of the most broadly used devotional texts in seventeenth century Lutheranism. Müller writes in the tradition of Johann Gerhard and Johann Arndt, along with other prominent devotional writers within the Lutheran tradition. This is one of the greatest examples of the practical and devotional nature of the theology of the Reformation as defined in the Lutheran Confessions. The book consists of a number of short devotions which are centered on Christ's person and work for the forgiveness of sins. Also included are some practical instructions for the Christian life. This work continues to profoundly affect the lives of those who read it, in pointing Christians to the love and grace of their Savior.