What are the expressive techniques and skills in China's poetry appreciation?

Expression skills: 1 borrowing scenery or things to express feelings (when the author has feelings about a scene or objective things, he puts his feelings and thoughts in the scene and can express them by describing the scene) 2. Integrating feelings with the scene, objects or scenes (integrating feelings into a specific natural scene to express feelings by describing the natural scene) 3. Directly expressing feelings (it is an "attachment" without any attachments).