Understanding of people allows for solutions. If instead of getting angry, you simply try to understand someone, you’ll not only control your anger better, you’ll be able to solve the issues, and help people at the same time.
Another example is of a child stealing some food from you. Is stealing wrong? Yes, of course. And most people would get angry, unless they understood how hungry the child was. If you knew the child hadn’t eaten in the last five days, what would you do? Get angry? I doubt it. Most of us would simply give the child more food.
The difference? Understanding.
The best solution to controlling your anger is to focus on trying to understand someone instead of focusing on your hurt feelings.