Just a moment ago nature put on one of its most spectacular demonstrations. The widest rainbow I have ever seen stretched from the lake over a high snow-clad mountain to touch down in a deep valley in the Alps. There was about this gigantic rainbow a deep benediction of peace and hope. But as ineffable as nature is in the effect of natural beauty on the mind, it cannot match the peace of God in its healing effect on the human mind.

Power of the Plus Factor (1987)