All art is experiential - i.e. you can only understand it by experiencing it. This is true regardless of whether you are making it or are in the audience. In other words you've got to do it to learn it. And making art is exploratory. When you're exploring then, by definition, you can't know where you're going before you start. The best you can do is work out a plan for exploring efficiently and effectively. Then you have to start your exploration - and that means making pictures.