I happened to rather enjoy this book as a child, despite being an atheist. Sure, it has some flaws (especially in the later books if I recall), and it has a lot of very obvious references to religion, but I genuinely don't get people who need books and their authors to agree with them on every single point. What's the point of hopping into other worlds if they only resemble what you personally think the world is like? Go read a nonfiction book if that's what you want.