Currently in book III of Augustine's Confessions. Like any extant autobiography, it starts all the way back at birth, discusses original sin, and the dives in to the iniquity that he built up his whole life. You can really feel his soul just pouring out onto the pages. It's so enriching to read about a man who had such a thorough understanding of his sinful state and his uselessness before God. I plan on updating this thread as I continue reading through. fell free to jump in to make some insights.