2. Nostalgia: either express the memory of the ancients or express the sigh of the past ups and downs.
3. Homesickness: either express homesickness or care for your loved ones.
4. War category: either express aversion to war or express yearning for peace.
5. Leisure time category: either express leisure and quiet mood, or express yearning for seclusion.
6. Take advantage of the scenery to express feelings: or take advantage of the scenery to express your good wishes, or take advantage of the scenery to express the quality of being unwilling to go with the flow, or take advantage of the scenery to express your feelings about the world.
7. Hold things to show ambition: or hold things to show their noble quality, or hold things to show the sadness of talents who have not met.
8. love; It accounts for a considerable proportion in ancient poetry. Many of these works are handed down from generation to generation with their rich contents, beautiful emotions and diverse techniques.