Dai Tinghuai's Interpretation of the"Ge"and"Jie"Trigrams and the Knowledge Influence of Ming Dynasty Practical Calendars
Dai Tinghuai's 戴庭槐Interpretation of the"Ge"and"Jie"Trigrams(革節卮言)is a treastise on calendrical astronomy.Its primary objective was to illustrate the correlation between calendrical astronomy and the renowned ancient Chinese classic,the Book of Changes(易經).Drawing its title from the"Ge"and"Jie"trigrams within the sixty-four trigrams of the Book of Changes,this work serves as a valuable supplement to the field of Yi(易)studies by providing extensive knowledge on astronomical calendars.It contains three main facets:"Tiandi qizheng"(The Seven Governors of Heaven and Earth),"Sishi qihou"(The Climate of the Four Seasons)and"lishu runfa"(Intercalation Methods in Calendrical Techniques),which has a close connection to the Ming dynasty practical calendars.Additionally,Dai Tinghuai offers insightful interpretations and critiques,including a critical evaluation of auspicious and inauspicious elements found within the practical calendars.This treatise not only reflects the astronomical expertise of lower-ranking Confucian officials during the Ming dynasty but also highlights the profound influence of practical calendars on the ordinary Confucian scholars.The motivation and distinctive characteristics of Interpretation of"Ge"and"Jie"Trigrams are intricately linked to the socio-cultural context of the Ming Dynasty.Consequently,it effectively showcases the dissemination and societal impact of astronomical knowledge during this historical period.
Dai TinghuaiInterpretation of the"Ge"and"Jie"Trigramspractical calendarMing dynastycalendrical astronomy