 The full title of the text is Zhouyi cantong qi, which can be translated as, for example, "The Kinship of the Three, in Accordance with the Book of Changes".According to the traditional view, well-established in China, the text was composed by Wei Boyang in the mid-second century CE, and deals entirely with alchemy—in particular, with Neidan, or Internal Alchemy.Besides this one, there has been, within the Taoist tradition, a second way of reading the text