"Its name, "The Book of Changes," is suggestive; and we find throughout its contents the vague idea of change replaced by the more definite one of "transformation," the key-word of alchemy... "The diagrams," [Confucius] says again, "comprehend the profoundest secrets of the universe; and the power of exciting the various motions of the universe depends on their explanation;—the power to effect transmutation depends on the understanding of the diagrams of changes." Here, in a word, is the...general object of Chinese students of alchemy."