Poetry mainly expresses an inner feeling! There were five words and seven methods in ancient times, but now they are not limited by format. They can be long or short. Unlike articles, poems contain many words, poems and short words to express their feelings.
The main artistic forms of poetry are recitation. You can't just read without backing, you can't be unmoved, you can't read only half. After reading a poem completely, you need to stop with emotion and rhythm.