Abstract: There is a spiritual factor that can be felt but cannot be analyzed rationally in the aesthetic and artistic works, which is both emotional and general or likes both the state of mind of the viewer and the state of being of the object. Kant calls the indefinable but perceptible “spirit” as “aesthetic idea”. He got a preliminary interpretation to it, and then those who really have the capacity of aesthetic appreciation inherit the intuition and perception of this “spirit”, and regard it as the real object of aesthetics. Kant has initiated this aesthetic inspiration land, which gleams explicitly or implicitly in modern aesthetic history and critical theory. It is the true meaning of aesthetics, the uniqueness of aesthetic behavior and the resonance of Chinese and Western aesthetic spirit.