Do not try to be understood by someone trying to misunderstand you is a valuable lesson Cyrus talks about. He said, people will know what you're saying, but they act like they don't just so you can be wrong.
Cyrus goes on to say how much of a waste of time this may be. You are fighting an uphill battle that will never stop. Even when you "win" you still lose based on the time spent to help someone that doesn't want your help.
Listen to Cyrus' perspective. Have you ever had this happen to you?