There is a saying from Zen Buddhism: "In the beginner's mind, there are many possibilities. In the expert's mind, there are few". Granted, the beginner is als

There is a saying from Zen Buddhism: "In the beginner's mind, there are many possibilities. In the expert's mind, there are few". Granted, the beginner is also going to go down a lot of dead-ends, but sometimes the expert won't get started on something which they have mistakenly ruled out as impossible. The question is, what (mental) exercises could you do to get into the practicality equivalent of "beginner's mind"?