In books VII and VIII of Augustine's autobiography of his life and faith he discusses his reasoning for converting to Catholicism. One fascination Augustine carries throughout the entire Confessions is his interest in philosophy; in Book VII he explains how Neoplatonism allowed him to understand the Catholic beliefs better. He begins by admitting that at this point in his life he is only able to comprehend substance as something that is tangible (VII 1). At this point in his life he had rejected the belief Manicheen Dualistic belief that Good and Evil are two apposing forces and was now trying to comprehend a God that he reiterate many times as being "imperishable, inviolable and immutable (VII 1).
Augustine struggles with this idea of God existing if he has no substance that he can see. He then tries to image God as sunlight, who is life of his life, but then realizes God is something he can not just imagine, but that is just the way he is accustomed to thinking he says (VII 2). He then goes on to discuss how in Carthage he got in a discussion about why God would allow evil to exist and realized that they argument was extremely weak and in fact, the substance of God is incorruptible (VII 3). From this point he further ventures on to explore the problem of evil, citing that he reached a point after discussing with some Catholics evil exists because we have free will. This left Augustine pondering though why if we had an amazingly all powerful God why we would even be capable of choosing anything that would take us away from him (VII 5).
He now sets his efforts to discovering more of the truth as wonders we evil came from if God created everything and he made all things Good (VII 6).
After some time passes, Augustine switches gears and writes about he has rejected astrology for being misleading and impious (VII 7), before he uses a Neoplatonic text to quote a narration that vary similarly parallels the creatio