Duke of Zhou is a folk dream interpretation book, which relies on people's dreams to predict good or bad luck. * * * There are seven kinds of dream interpretation. The Duke of Zhou in the book is Zhou Gongdan, and Confucius' dream of "I no longer dream of Duke of Zhou" often appears in Confucianism. 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.