What happened to Wu Zetian when she was a child?

There are not many records of Guan Wu Zetian's childhood, but it seems quite magical to record a fortune-telling event. According to Yuan Tiangang Biography of the New Tang Dynasty, when Yuan Tiangang was young, his father Wu Shihuo was the secretariat of Lizhou. There is a local fortune teller named Yuan Tiangang who once calculated her life. Yuan Tiangang once passed by Wu Zetian's house and happened to meet Mrs. Yang. When Yuan Tiangang saw it, he immediately said, Madam, you are born with extraordinary skills, and you will have a noble son in your family. Which mother is unhappy? Mrs. Yang invited Yuan Tiangang home at once and let him see which child is your son. According to the custom at that time, meet your son first. Wu and Wu were pulled out. Yuan Tiangang took one look and said that these two husbands are good-looking and will be their sons in the future. Then the eldest daughter was called out again. Yuan Tiangang read it again and said that the little lady was born well, and she must be a noble lady in the future. Unfortunately, it's not good for her husband. After she made a fortune, her husband did not recover. Then the wet nurse took Wu Zetian out.