The meaning of beauty in daily life is beautiful, pleasant to hear, satisfying, or beautiful, and so on. The beauty of aesthetic theory can be divided into narrow sense beauty and broad sense beauty. Narrow sense refers to an aesthetic category juxtaposed with sublimity, also called elegance. Beauty in a broad sense refers to everything with aesthetic value, or the essence of everything with aesthetic value, which is equivalent to the essence, aesthetic value and aesthetic object of beauty. The original discussion about the essence of beauty was actually about beauty in a narrow sense, that is, beauty. It was not until the18th century that the sublime and the ugly entered people's aesthetic vision, and beauty had a wide range of aesthetic meanings. From Plato's "beauty itself" to18th century, philosophers, aestheticians and ideological circles had a * * understanding of the essence of beauty. In modern and contemporary phenomenological aesthetics, the meaning or essence of beauty has become an aesthetic object. Phenomenological aesthetics also believes that there is a long-standing confusion in aesthetics, that is, the confusion between beautiful things and aesthetic objects. Beautiful things are things that conform to the concept of beauty, such as things with classical meaning of beauty, such as works of art; Aesthetic object is the natural appearance of things when they are viewed without any concept.