The fortune teller said that a son had died.

What do you mean, "a son and a daughter-in-law are true and false",

"The son's daughter-in-law is true and false" is an ancient folk saying, which means that there is a son and a daughter-in-law, but the grief of the son is from the heart and the grief of the daughter-in-law is false. That's what the so-called "true and false" means.

This statement usually appears in the process of fortune telling or face reading, and is used as a term for divination or divination. In ancient times, people thought that "death" was an act of filial piety, that is, waiting for parents or elders when they were dying and taking care of them at the last moment. Therefore, "son and daughter-in-law are true and false" is a folk divination term used to describe whether a person has real filial piety and sincerity.