Inner life may also be called spiritual life. One can see it in the forest where it is the rain from above that makes the forest beautiful; this means that the forest alone does not have all that it needs, but that it needs something that comes from above: the light and the rain. It is the sun and the rain that make the forest complete. In the desert there is no rain, and therefore it is incomplete; there is the earth, but there is no water nor is there water from above. The water that gives life to the forest is not to be found in the desert. The desert is unhappy, and the man in the desert is unhappy too, looking for shade from the hot sun; for the desert is longing, and the man in the desert is longing too for something he cannot find; whereas in the deep forest there is joy, there is inspiration, the heart is lifted up because the forest is a picture of the inner life -- not just the earth, not just the trees and plants, but because something which it needs has been sent down to it.