In fact, at the earliest time, Duke Zhou was just a title, referring to an old gentleman surnamed Zhou, but people believe that this book is the true biography of Duke Zhou. In fact, it was written by someone who borrowed the reputation of Duke Zhou, and it took a long time to complete the book. The early Duke of Zhou assisted Zhou Wuwang in his crusade to the East, and formulated the system of rites and music in the Zhou Dynasty, so people later said that the ceremony also originated from this. What really connects Duke Zhou with dreams is a dream of Confucius.
In Zhou Li by Duke Zhou, it is said that dreams can be divided into several kinds, and people can interpret dreams according to the sun, moon and stars, so people think that Duke Zhou can interpret dreams. For Confucius, Zhou Li is particularly admired in theory, and they have been separated for many years, so it is naturally difficult for Confucius to study Zhou Li. When encountering some difficulties, he naturally wanted to find opportunities to discuss with the Duke of Zhou, so over time, he sometimes dreamed of discussing Zhou Li with him. Therefore, it is a pity that Confucius said, "I no longer dream of the Duke of Zhou". I can never dream of the meaning of Duke of Zhou in his dream, but later generations have misunderstood it, which is why people now say Duke of Zhou's statement.
On the whole, Duke Zhou was actually a misunderstanding. Duke Zhou, who has the talent to govern the country, and Duke Zhou, who interprets dreams, are actually not the same person, but slowly spread into one person in legend.