What is the theme in Augustine of Hippo: A Biography, by Peter Brown by Peter Brown?

Another theme is the life of a saint. This is the story of man named Augustine. The author presents it clearly, accurately and from a rather secular perspective. This lends credence to the idea that the purpose is to transmit accurate information. This will show readers how it is that Saints have spent time as living mortals, and gives an account based in fact rather than in fanciful vision. One point is that in the case of Augustine there are no stories surrounding him having any knowledge of his importance early in his life. That does not guarantee that he was unaware of his great destiny, but it means that unlike Jesus, who was greeted by foreign Magi, presents and a family cheerfully recognizing him as an incarnate god from the beginning, Augustine was treated as though he were a perfectly normal boy in a rather regular family. As such, he really might not have known whether or not he had this 'great destiny'.