But his encounter with Christ totally changed his life. His greatest work, THE CITY OF GOD, reflects the thinking of a brilliant man. He argued that cultures are not reflections of a people's race, ethnicity, folklore, language or heritage. Rather, they are the outworking of a people's creed. They reflect a people's faith.
Cultures change as people's faith changes.
That is why he fought so hard against the paganism of his day and the heresies within the church. He knew that if they won the day, it would have profound cultural implications. He realized that the church is the genesis point for the development of a world view that radically changes culture.