The ancestors paid attention to "eating two things and doing two things", don't forget the old tradition! The first thing to do is to fill in a small position. The date of China's vast territory and abundant resources is not fixed. Twenty-three is a "small position" and twenty-five is a "big position"! The so-called "Valley Filling Festival" is a folk activity to pray for a bumper harvest, delicious food in Man Cang and a rich life through sacrifices.