What's the name of the blind fortune teller?

I asked the blind man to tell my fortune today. I don't know if it's accurate. It feels mysterious. Does anyone know how they understand people's lives?

The blind man's backrest formula is used to tell fortune and calculate yin and yang elements. Everything was read to him with his eyes, and he remembered it with his heart. According to the individual's learning level, the exact rules are different. Some people have some mysterious ways, that is, the words and deeds of leaders have specific meanings.

There are also some real experts in the Book of Changes. They learn endlessly, are very proficient and flexible, and often use several mathematical skills at the same time, but they are superb.

At present, the more popular books on the market are four-column prediction, also known as eight-character prediction, six-character prediction and plum blossom easy counting. Beginners can read.