The Cult
Heaven's cult had one priest and no church: the Son of Heaven alone could sacrifice to Tiān. The core rite was the Suburban Sacrifice, offered at the round altar south of the capital on the winter solstice — Heaven round, matched by the square Earth-altar to the north at summer solstice — a rule codified in the Book of Rites and enacted with growing splendor: Han Wudi's five-altar complex at Ganquan, Emperor Cheng's southern suburb of 31 BCE. The victim was the highest there is, a single bull, with round jade bi discs laid out as Heaven's image. At Beijing, Yongle's Temple of Heaven (1406–1420) gave the rite permanent architecture, the emperor fasting three days before he ascended. The oracle bones of Anyang write the earlier chapter: the Shang supreme god Shangdi receiving sacrifice with exactly this kind of anxious solicitude, the direct predecessor of Heaven's cult.


