What does the fortune teller mean when he says you don't have to tell a fortune?

First, he is not good at technology and can't see you.

Second, you are doomed. Fortune tellers generally don't tell the truth to people who are dying.

Third, you have a destiny, and your destiny will be good and bad. Fortune tellers generally don't look at fate.

Fourth, you did something immoral, and the fortune teller disdained to show it to you.

Fifth, in these possibilities, you sit down accordingly. Besides, fate can be changed. Look at "Four Disciplines". There is an audio version in vernacular, which can be downloaded and listened to.