The beauty of melody will make poetry catchy, concise and aesthetic words will make people think deeply, and the use of rhetoric is more flexible and eclectic than modern writing. When writing poetry, you don't have to worry that your intentions are not understood. You just need to express your ideas in your own way, but modern writing can't.
Modern people read too little, even literati are not as familiar with melodies and allusions as the ancients, and their ability to control words is not enough. After all, the ancients only studied Chinese, but today people have a lot to learn. But people today can still write poetic prose, essays, etc., which is the embodiment of personal utility.