Tianqi Emperor
The "Book of Burial" says that burial takes advantage of "vital" qi"". The Qing dynasty Wu Yuanin said that vital "qi" was "congealed "qi"", which is the state of "qi" that engenders life. The goal of feng shui is to take advantage of vital" qi" by appropriate siting of graves and structures. Some people destroyed graveyards of their enemies to weaken their qi. Among them, Wu Zetian against some rebels (684), Yuan destroying Emperor Lizong's grave , the Tianqi Emperor against Nurhaci (1622), Chiang Kai-shek against Mao Zedong (1930)