Understanding Good & Evil

I am currently reading "The Spiritual Hitchhiker's Guide to the Universe," by Paul Rademacher. In the book, Rademacher explores the nature of good and evil and our perception of it. Is the universe really divided into 2 opposite polarities? Or are they simply 2 sides of the same coin? Understanding this question could alter the way we perceive and experience the world around us. While exploring this, I also explore the concept of "God." Is he simply a judgmental being that looks like a man sitting in Heaven? Or is the concept of "God" a misunderstood personified representation of the universal creative life-force that runs through all things in existence? If he is not the personified judgmental man sitting in a cloud, then why was such a story created in the first place?