Symbols of Four Images in Zhouyi

The correct understanding is that the ups and downs of yin and yang are born from the bottom up and from the top down.

Therefore, the old yin is two yin and one yang, and the young yang is the bottom one yang, and the yin is eliminated until the yang reaches the top and then the yin is completely eliminated, which becomes Lao Yang, while the young yin is born from the bottom for the young yin and then goes to the top to completely eliminate the yang, which becomes the old yin.

So the four correct symbols are

Laoyin-Shaoyang-Lao Yang-Shaoyin-

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