What is the meaning of yin and yang in the Western Zhou Dynasty?

What is the meaning of yin and yang in the Western Zhou Dynasty?

According to the records of "Mandarin · Zhouyu", after Guo Wengong persuaded King Zhou Xuan to hold the ceremony of Jitian, there were "yang paralysis, rustic tremor", "yin and yang distribution, and thunder stasis". In the second year of Zhou Youwang’s earthquake , Father Boyang said: “The sun cannot come out of the sun, and the overcast can’t steam, so there was an earthquake.”

From these written records, we can see that in the Western Zhou Dynasty, people have begun to use yin and yang to explain astronomical and geographic phenomena.

In the book Lao Tzu, it says: "Everything bears yin and embraces yang, and energizes to think of harmony", which also refers to the two qi of yin and yang.

Yin and Yang are considered to be the foundation of the universe, and everything in the world can be explained by Yin and Yang. For example, the sky is yang and the earth is yin; the sun is yang and the moon is yin; the upper is yang and the lower is yin; the left is yang, the right is yin; the male is yang, and the female is yin...just like "Liezi·Tianrui" It is said that "the way of heaven and earth is not yin or yang" is a common view of the universe of the ancients.