God is supposed to be all good. But is it possible for good to exist without any bad? We cannot live without oxygen so it should be good. Yet, we are rarely aware of preciousness of the life-sustaining gas because it is abundant everywhere on the Earth. We would only be aware of how good oxygen is unless we face a danger of suffocation, which is bad. Good can only be good when there is something to compare to.
So an absolutely good God needs someone or something absolutely bad. Something huge always accompanies a huge shadow. This can explain why Satan is extremely powerful for the Christian or Muslim fundamentalists. Their God is so powerful that He sounds like a muscular commando. (Well, it may be a correct view of Yahweh because He is Yahweh Sabaoth, the Lord of Armies.) A God that powerfully good may not be able to exist without the backing of something excessively evil and powerful - the great Satan as the great God's enourmous shadow.
It is nothing new. It is what Carl G. Jung, the famous Swiss psychologist said. And the theory of "shadow" is a very important part of Jungian psychology. But it took me almost a decade until I realised that the mystery of my neurosis could be solved by this theory.
