High School DxD

This is one of the more newer anime this year, a life of your average high schooler getting drawn into a world of demons and angels. But seeing as the entire series has just started I tried searching for the manga, I got bored so I went for the next big thing... the light novel, it's original publication. And after finishing three volumes of the story, I have to say the view of the author about religion is quite interesting. The one that truly caught my attention though was the fact that people can get consumed by their own faith. They lose tract of what's right and starts believing that the teachings of their church is absolute... I don't know if that's the intention of the writer but that's the impression I'm getting. People so absorbed by their beliefs start believing there is only absolute good and absolute evil, it's even funny that this is the christian view of things. But what if we're wrong? What if everything we knew about our faith is mislead, what if there are things that are kept behind our backs. Many questions are left unanswered by the church...