Aslan is the son of emperor-beyond-the-sea (even though we don't see him). He is the king and the creator of Narnia. He is also the all-knowing and the all-loving king. C.S. Lewis meant Aslan to represent Christ and Aslan's father to represent God. The children and the Narnians represent the humans and the witch represents the evil spirits that want to drag us to our bad side.