Why can't fortune-telling calculate the life span of a yogi?

Fortune-telling is the Book of Changes, and it is the experience that the ancients summed up and verified. It has certain reference value and cannot influence the development and change of things. People who practice are definitely inaccurate, because people who practice have a "first" foundation and their spiritual destiny is far higher than that of ordinary people. In addition, the people who practice are ever-changing, and they are definitely not allowed!