Ask why there are generally no ten gods in the eight-character arrangement.

That's right. Generally not marked. It is very troublesome to mark these ten hidden gods, because we must first find out the depth of solar terms to mark the order, and fortune tellers are sometimes careless. If they make a mistake and are afraid of being hit in the face by the lender, they simply don't mark it. Why didn't you ask him to bid? He said I didn't need to mark it in my head. Marking these is not fortune telling, but teaching fortune telling. Books that teach fortune telling should be marked: it doesn't matter if the fortune teller marks them first, as long as the calculation is correct.