The artist's job, I think, is to be a conduit for mystery. To intuit it, and recognize that the story-germ has some inherent mystery in it, and sort of midwife that mystery into the story in such a way that it isn't damaged in the process, and may even get heightened or refined.
So I set out to study the oxidation system in the potato, which, if damaged, causes the plant to turn brown. I did this in the hope of discovering, through these studies, the key to the understanding of adrenal function.