What animal is Gongshayun?

The Book of Changes is a "classical Chinese" in the Ninth Five-Year Plan: the Ninth Five-Year Plan says that "flying dragons are in the sky, which is beneficial to meet adults". What is this? Confucius said, "Answer with one voice and ask with one spirit; The water is wet and the fire is dry; Clouds rise from dragons and winds from tigers; Sages do everything and see everything. Those who are close to the sky and those who are close to the earth are all from this class. " So "cloud" means "dragon".

In the traditional customs of China, dragons are in charge of rainwater. In the past, the Yellow Calendar listed "Counting dragons to control water".