Ignatius of Loyola, sixteenth-century mystic, spiritual director, and founder of the Society of Jesus, is considered to be among the greatest educators in the history of Western civilization. While the Jesuits went on to establish one of the largest educational networks in the world, Ignatius’s initial vision was simply “the help of souls.” Even today, his writings continue to inspire Christians in their quest for a meaningful holy life. The Spiritual Exercises alone—Ignatius’s most well-known work—has guided the retreat experience of over a million Christians over nearly five centuries. This fascinating introduction to Ignatian spirituality draws from contemporary translations of original texts focusing on the practical mysticism of Ignatius of Loyola. Excerpts from The Spiritual Exercises, his autobiography, and his collected letters and instructions provide direct insights from Ignatius about the role of humility, obedience, discernment, sin and self-awareness in spiritual life. Substantive facing-page commentary illuminates Ignatius’s perspectives on many key aspects of Christian spirituality, including trusting in God, imitating Jesus and the saints, love and the common good, and much more.