In the meantime, there is a quatrain called: three lights, the sun, the moon and the stars, and four poems are elegant.
Among the six meanings, style, elegance and ode refer to the types of poetry in The Book of Songs, and fu, bi and xing are the expressive methods in poetry.
Fu: It is a way to express things directly. Zhu, a scholar in the Song Dynasty, said in Notes on Poems that the giver should tell the truth.
For example, Ge Tan and Slug in The Book of Songs used this technique.
Bobby: It's a figurative way to describe things and express thoughts and feelings. Liu Xie said in "Wen Xin Diao Long Bi Xing": What is Bi Ye? Cover things with accessories and threaten them with broken objects. Zhu said: If you compare, you should compare this thing with another thing. For example, books in The Book of Songs, such as Cats and Storytelling, are written in this way.
Xing: it is a way to make things interesting, that is, to use the beginning of things to arouse the things to be described in the topic and express thoughts and feelings. In the Tang Dynasty, Confucius said in "Mao Shi Zheng Yi": Those who get the Tao are prosperous. For example, to learn from others, from their own hearts, those who quote plants, birds and animals in poetry and prose are happy to say what it means. Zhu pointed out more clearly: those who are interested should talk about other things first to arouse what they are singing. For example, Guan Ju and Yao Tao in The Book of Songs are just expressions of interests.
These three methods of expression have been handed down all the time, and they are often used comprehensively and complement each other, which has a great influence on poetry creation in past dynasties.
Summary: There are many ways to express poetry, which are constantly developing and creating since ancient times, and their application is also flexible, exaggerated, repetitive, overlapping, jumping and so on. It's hard to describe. However, all methods are inseparable from imagination. Rich imagination is not only a major feature of poetry, but also the most important form of expression of poetry.