In the divination of six hexagrams, there are often sunsky and xunsky, so what is the difference between them? How to use it specifically!

When Xunkong divides the year, month and day, it is heavenly stems and earthly branches from A to D, and the two earthly branches after D are generally used in the daily value, so that Xunkong near the daily value is called Sunkong, and things used by people in Xunkong will not appear until it is empty or empty. This is a common usage. ...