If you are looking for a spiritual guide, you will be hard pressed to find one better than Bernard of Clairvaux. He is famous for his historical and political exploits. (After all, he was involved in untangling a Church schism and starting the Knights Templar!) But his theological and devotional works are worth savoring. He was a student of the love of God and of the human soul, making him a faithful guide to those seeking to know God and know themselves more deeply.