1. Want to suppress the old and promote the new. The first two sentences of the poem are the first level. Emperor Wu of the Han Dynasty preached and asked for a visit to the minister. Emperor Wen of the Han Dynasty expressed admiration for Jia Yi's talent and knowledge when he met the courtiers, which was obviously a compliment. However, the last two sentences of the poem suddenly turned upside down. It is obviously ironic that Jia Yi was not reused when writing Emperor Wen of Han Dynasty. The ingenious use of this great turning point makes poetry present an artistic effect of restraining the old and promoting the new.
2. satirize the present with the ancient, and stay away from it. This poem satirizes the present with the ancient in the overall structure, with profound implications. It uses the stories of the ancients to mock that people in power today can't attach importance to talents, which makes them ignored and buried. This use of historical stories actually satirizes the present by borrowing from the past, expressing the poet's dissatisfaction and satire with the real society in twists and turns.
3. Love is in things, but it is implied. This poem euphemistically expresses the author's dissatisfaction and satire with the real society by telling the story of Emperor China's propaganda room seeking virtuous people to visit officials. This sentimental technique makes poetry implicit and meaningful.
Generally speaking, this poem uses a variety of expression techniques, such as suppressing the old and promoting the new, satirizing the present with the old, and containing feelings in things, which makes the performance of the poem concise and implicit and full of artistic appeal.