Given are two answers. A. Here’s the standard answer to your question. Study hard, learn much, do problems, and then you will understand. Then study harder. B. Here’s an alternative answer. Do what wisdom does when understanding is delayed. Example. Infinity. It is safe to say no one really understands infinity. BUT, what most of us* do is learn the rules of infinity and work within them. Over and over again. Eventually, you are accustomed to all the rules, and this becomes your understanding. Your alternative is to learn the rules of the subject you have trouble with. Learn to work with them. Review and do dozens upon dozens of problems. By and by, you will be accustomed to them; you will have facility with them, and this will convert to your understanding. I know this sounds a bit cynical, but it does work. Please note, this alternative is not a shortcut. Both take much time and work. This is how most people understand God, who like infinity, is beyond comprehension. ---------------