The Trinity of Creativity

When you're looking at, for example, Michael Levin and his, his multicellular organisms as they're developing, there are sometimes little errors that happen in that development. So one of the things Michael Levin always asks is, how do the cells know when they're building an arm? I mean, those things are very mysterious, even to the people who work intimately with that stuff day in and day out. One of the books I was reading a couple of years ago, which I'd like to go back to is a book by Dorothy Sayers. The Trinity of creativity consists of the creative idea, the creative energy, and the creative power.