The abstraction of music brings fuzziness, extensiveness and directionality to its content. It can be said that, among all the arts, it is the closest art that can only be understood, but cannot be explained in words, and many music works can hardly be explained in words. George enescu, a famous Romanian musician, said: If you need to express the content of one of Beethoven's slow-motion poems in prose or poetry, you will soon feel that words are not enough here. However, that's all, and its charm is incalculable. Liszt said: Music gives people a sense of intoxication, which seems to be covered with an impenetrable mysterious curtain. Because of this, this intoxication is even more precious and noble. Some music (such as some religious music) just sets off an atmosphere, casts a mysterious veil, and is even difficult to "understand". As Goethe said: Music expresses the highest spirit, too high to be chased by the unknown. Its impact can be overwhelming and unexplained. Therefore, religious ceremonies are inseparable from music. You can only feel this kind of music with your heart.