I knew that what I did visually could not be completely understood. I knew that certain aspects of the work need a long time to develop. You get the visual idea in two seconds, but this idea can be developed like like a theory. You can see later on if the theory was correct, followed, or completely abandoned. That's why the writing can advance what is done. This is more or less how I started to write: to be sure that people will not totally misunderstand what my goal was.