On Friday, I talked about The Moods of Colour. In short, I argued that the different plants, lichens and rock in the image below were all different moods of light, different levels of energy excitement, for instance, which humans like you and I can read very precisely. Notice how the red oregon grapes, the yellow lichens, and the green mosses are all tracking water across the face of the rock and in its crevasses.
The water, in other words, has taken on moods as well. We can talk about the diversity of plant life here, or the diversity of water, its moods, or that the oregon grape is climbing the water, rather than being washed down with it, as are the mosses. The latter sounds good to me.
Next: more on the tricks of water.