The Research On Natural Philosophy In Han Dynasties In The View Of Image-Number Yi-ology

Yi-ology is a series of theory which is result from the interpretation of Zhouyi. In the era of Han dynasties, Image-Number Yi-ology, whose main content is the theory of Xiang and Shu, have had a great development. The reason of that, on one hand, is related to the Xiang-Shu connotation of Zhouyi and Yizhuan, on the other hand, is related to the culture context in Han dynasties. Meanwhile, the era of Han dynasties is an era that Chinese ancient science have been profoundly developed, especially in the field of astronomy and calendar-study. People in Han dynasties have advanced some kind of cosmology in the book such as Huainanzi and Yiwei, which is used for explain the creation of the cosmos and the origin of the world. They also divide the star sky into parts according to politics, and integrate the visible aster with human affairs. The development of calendar-study of Han dynasties is Sifen calendar-Taichu calendar-Santong calendar-Houhansifen calendar, such calendars could be classified into two patterns, one is quartered calendar and the other is eightiethed calendar. Taichu calendar and Santong calendar belongs to eightiethed calendar. The Taichu calendar take the number of music notes as its basic data, but is barely related to the number of Yi. In contrast, the Santong calendar takes both the number of music notes and the number of Yi as its basic data. That has a profound influence on late ages. The Image-Number Yi-ology theory in Han dynasties which is closely related to astronomy and calendar is the Guaqi theory of Mengxi, Yi-ology of Jingfang, the Guaqi and Yaochen and Taiyijiugong theory of Zhengxuan and Yuetinajia theory of Yufan. The combination of astronomy and calendar-study and Image-Number Yi-ology, have created new meaning spaces in their both region. The astronomy and calendar study, on one hand, take Yi as it's guiding theory, for the other hand, take Yi as it's foundation. Through this way, the astronomy and calendar-study had surpassed the mathematic meaning and reached the state of the integration of human and the heaven. Yi-ology have absorbed the achievement of the development of astronomy and calendar study, and established a system of Image-Number Yi-ology, then build a structure that include everything in itself. The Image-Number Yi-ology-Natural philosophy system in Han dynasties take this structure as its basic frame, and draw support from the categories such as Yinyang, Wuxing, Gua, Number, Ganzhi to set itself up. The Image-Number Yi-ology-Natural philosophy system in Han dynasties presents as a hierarchical network structure which is rich in rhythm and based on the interaction of Yin-yang. This system takes Yin-yang as basic structure, takes the world model comes from 64 gua as its frame, and have combined the hierarchical network structure, the space-time coordinates, the time dimension which is nested and periodic and the interaction between heaven and human. It is also elastic and steady in a sense. The Image-Number Yi-ology have finally step down from the stage of history because it is too complex, overstate the importance of Image-Number and ignore the importance of Yili. The penetration of Image-Number Yi-ology to astronomy and calendar study has blocked the development of the latter. Nowadays some people have advanced the concept of Science Yi-ology. What we should know is that Yi-ology is complete different from science. The combination of Yi-ology and science can only have some guidance for each other, but can never verify each other in details. The opinion which believes that the theory of Yi-ology contain many cutting-edge achievement of modern science is totally wrong and inadvisable.