我们民族历有“功成作乐，治定制礼”的老规矩，同时又有“五帝三五各殊名示不相袭”的说法。 当周公旦制礼乐时，就当时对宇宙的认知对乐的理性的理解，对人伦、情绪、政治秩序的安排等都是极为认真和有序的。为达到乐以致治之目的，把所有的祭祀、朝仪、交际、娱乐等等的活动 Our nation has the old rule of “meritorious deeds and rites of precepts”, and at the same time it has the notion that “the Five Emperors, the Three Kingdoms, the Three Kingdoms, and the Five Emphases, do not attack each other.” At the time of the rituals and festivals of the Zhou dynasty, understanding of the cosmos at that time was very serious and orderly for the understanding of music and the arrangement of human relations, emotions and political order. In order to achieve the purpose of music, all the activities of worship, dynasty, communication, entertainment, etc.