The first half of Devotion to the Holy Spirit explores the works of the Holy Spirit in salvation history and in the life of an individual, helping readers better understand the Holy Spirit's work of grace. The second half of the book includes a collection of prayers (by Saints Basil, Augustine, Thomas Aquinas, Alphonsus Liquori, Catherine of Sienna, Pius X, John Paul II and others) to help readers draw closer to the Spirit of God through prayer.