What kind of book is Zhouyi?

Zhouyi is a splendid cultural treasure in ancient times, which was used by the ancients to predict the future, make decisions on state affairs, reflect the current situation and measure heaven, earth and personnel. However, this is only a means that the ancients relied on before mastering the scientific method, and it is not a real science. Although some understandings are scientific, it is because they are only scientific and reasonable, but they cannot be said to be scientific. It can only be regarded as a culture. The contents of Zhouyi mainly include Jing and Zhuan. Zhouyi is the source of China culture. Its content is extremely rich, which has had a far-reaching impact on China's politics, economy, culture and other fields for thousands of years. Zhouyi was listed as the first of the six classics (Book of Changes, Poems, Books, Rites, Music, Spring and Autumn) in the Western Han Dynasty. Enjoy the highest status in China's cultural history.