Lecture on the Book of Job "Because Job thinks that his horn is being trampled by God and his friends, that pain was greater than losing all his possessions and children and the pain of boils. In order for us to become perfect children of God, we have to break our horns." The Book of Job scrutinizes the heart of men very deeply and tells us about the evil and our true nature in the depths of our heart, thereby letting us realize ourselves. Ultimately, through this book Man of Flesh, Man of Spirit I, we can find out whether we are men of flesh or men of spirit, and it also gives us the methodology on how to change into men of spirit. 'Flesh' means something that changes, untruths, and darkness, and 'spirit' means the truth, unchanging and eternal things, and world of light.