In the prayer of the Christian Church there is a sentence: "Thy Will be done, in earth as it is in Heaven." This gives a great key to metaphysics. It gives a hint to the seer that His Will, which is easily done in heaven, has difficulty in being done on earth. And who stands against His Will? Man. And where lies the Will of God? In the innermost being of man. And what stands as an obstacle? The surface of the heart of man. And this means struggle in man himself. In him there is the Will of God, as in Heaven, and where there is the obstacle to it, there is the earth. By this prayer man is prepared to remove the obstacle which stands before the Will of God.