Six hexagrams are not dynamic hexagrams. Why do they become other hexagrams when they change?

If there is movement in the hexagrams, there must be a change of heart.

Changing your mind is another matter. If there is stillness, ten steps of yin and yang will become. But different hexagrams, that earthly branch may be different. According to the five elements of the main divination, the six parents should be reunited.

If a man's yin and yang remain unchanged, he will not change.

Besides, silence is not change.