in Thoreau’s Journal:

All fair action in man is the product of enthusiasm –– There is enthusiasm in the sunset. The shell on the shore takes new layers and new tints from year to year with such rapture as the bard writes his poem. There is a thrill in the spring, when it buds and blossoms––there is happiness in the summer––a contentedness in the autumn––a patient repose in the winter. 

Nature does nothing in the prose mood, though sometimes grimly with poetic fury, as in earthquakes &c and at other times humorously.