What is Zhu's "Seven Occupations" principle?

1. All six hexagrams remain unchanged, so this hexagram is a haiku:

Don't change all six hexagrams, use this big hexagram to break.

2. When a hexagram is changed, it will become a hexagram.

Only one hexagram is changed (for example, two hexagrams), so it is judged by the change of hexagrams (two hexagrams).

3. When two hexagrams change, use two hexagrams to change rhetoric:

There are only two changes (such as three or four), so the second change (four) from bottom to top. Because the first becomes three and the second becomes four, the second becomes four.

4. Three changes, which account for the rhetoric of hexagrams and hexagrams:

When only three hexagrams are changed (such as three, four and five hexagrams), the unchanged big hexagrams are separated from the changed big hexagrams (three, four and five hexagrams).

5. If there are four changes, it will be accounted for by two unchangeable changes.

Only four hexagrams are changed (such as one, two, four, six hexagrams), so the words that are unchanged in this change (three, five hexagrams) are combined, but the first one is unchanged in practical application (this is listed as three hexagrams).

6. Five changes, the hexagrams remain unchanged.

There are only five hexagrams (such as one, two, three, four and six hexagrams) when you change your mind, so it is judged by not changing your mind (five hexagrams).

7. When the six hexagrams change, Gan Kun will be dual-purpose, and the rest are hexagrams.

When the divination was started, the six hexagrams were completely changed. If it is a dry divination or a big divination, break it with the unchanged divination. The rest of the hexagrams were broken by the hexagrams derived from this hexagram.