People used to say gossip, but there are sixty-four hexagrams in Zhouyi.

Tai Chi is divided into yin and yang, which produce four images, namely, sun, shaoyang, Taiyin and Shaoyin. The four images are divided into four parts: sun's yang, namely, dryness, Taiyin's yin, namely, Kun, sun's yin, Taiyin's yang, Shaoyang's yin, Shaoyin's yang and Shaoyin, each representing a hexagram, dryness, Kun and Shaoyin. So the arrangement of Zhouyi is not bad. In fact, each hexagram is not a single element, but two kinds. For example, in Shuileitun, the next hexagram is the earthquake on the upper ridge, and then the upper hexagram is dry for the sky, so all combinations are sixty-four hexagrams.