What does fortune telling mean?

A friend's father is a fortune teller. He counted me as a minor illness this year. I don't understand. What does a minor illness mean in divination? What does a star disaster mean?

Don't believe the star disaster told by fortune teller. You should know the stars first. The ancients thought that the stars in the sky dominated the fate of all living things, which was purely false. In ancient astronomy, we divided 28 stars to observe the astronomical phenomena and set the calendar, that is, the lunar calendar (including the moon and the sun), which is helpful for agricultural management. Charlatans use it to mystify and theorize. So you can lie. Do not believe, there is no star disaster.