The mystic allows one thing to be mysterious, and everything else becomes lucid.

The determinist makes the theory of causation quite clear, and then finds that he cannot say "if you please" to the housemaid.

The Christian permits free will to remain a sacred mystery; but because of this his relations with the housemaid become of a sparkling and crystal clearness.

He puts the seed of dogma in a central darkness; but it branches forth in all directions with abounding natural health.

As we have taken the circle as the symbol of reason and madness, we may very well take the cross as the symbol at once of mystery and of health.