Abstract: "Definition and Analysis"is the method for FENG You-lan s explanation of Guo Xiang s The Exegesis of Chuangtse,which was put forward from unclearly to clearly by FENG You-lan.Although FENG You-lan thought that Guo Xiang s"Definition and Analysis" was the method for the enhancement of the spirit s state,his explanation is not always consistent with that of Guo Xiang.Feng Youlan himself paid much attention on the application of "Definition and Analysis",but this method actually has its two aspects,both posit...