Do I need to provide my name and date of birth?

As for the Book of Changes, you definitely need to provide your name and birthday time. Besides, this time is more accurate. So you can calculate the life of a person like you. But once the Book of Changes is taken as a whole, it is even more credible, because it took many years and generations of deliberation to reach such a result, but it is only the present people and modern people. I don't really believe in this book of changes, but I think this book of changes is sometimes more accurate, and I can't say that I don't believe it at all, let alone believe it with a grain of salt.