1. It is a kind of poetry and belongs to poetry in essence;
2. It has the characteristics of both prose and poetry;
3. Short space, strong emotion, poetic artistic conception, poetic emotion and fantasy, refined poetic language and musical beauty;
4. Write in prose, which is not bound by fixed format, does not branch, does not rhyme, and has the flexibility and diversity of prose expression;
5. The language is meaningful, the content is concentrated and thought-provoking.