What does the eight-character lunar mean?

The sun and the moon are two of the 12 houses arranged by fortune tellers when placing orders, and they are also one of the references for fortune tellers to predict good or bad luck in a year when approving orders. Where you are lucky, you will meet the sun in a fleeting time and have a good lunar year. The sun and the lunar calendar are not only used for fortune telling, but also widely used for choosing dates. Although the uses are different, they all mean good luck.