People say that Duke Zhou is Duke Zhou. Why do you say that going to bed is to find Duke Zhou?

The first generation of Duke Zhou in history was named Ji Mingdan (about 1 100 BC), also known as Shu Dan, and was the fourth son of Ji Chang, the king of Zhou Wen. Because the fief was in Zhou (now Qishan North, Shaanxi Province), it was called Duke of Zhou or. He was an outstanding politician, strategist and thinker in the early years of the Western Zhou Dynasty. He is regarded as the founder of Confucianism and one of the most revered ancient saints in Confucius' life. Duke Zhou enjoys a lofty position in Confucian culture. Confucius said, "I no longer dream of Duke Zhou" is a metaphor for the loss of etiquette culture in the Zhou Dynasty. Duke Zhou is a frequent figure in Confucius' dreams. In China, where Confucianism has dominated the culture for a long time, Duke Zhou is inevitably directly associated with dreams. Dreams are often called "dreams of the Duke of Zhou" or "dreaming of the Duke of Zhou". Pay attention to separating Duke Zhou from Zhouyi!