You have a problem, a mathematical problem or a personal problem; you have gone into it, investigated, searched out, talked it over, and you can’t find an answer. Then what happens? You just leave it, don’t you? But it is very important to find out how you leave it. If you leave it out of despair, out of fear, out of some motive, then your mind is still occupied with the problem. But if you leave it alone because you have looked at it in every way possible, then you leave it completely alone, which means your mind is no longer occupied with it, afraid of it, wanting to find an answer or wanting to escape from it. Then, if you leave it alone, out of nothingness the answer is there.