Sublimation. From low to high, it refers to three realms, here mainly refers to the perspective of value beauty. Generally speaking, beauty is a pleasant feeling, which is related to things. Beauty is an object attribute. Beauty is the subject's feeling and evaluation of the object. But this is based on the aesthetic ability of innate or acquired experience, which represents the subject's attitude and experience to things and perceptual impression, that is, feelings. Beauty lies within, which is the attribute of subject and object.