Liu Zongyuan used "Early Plum" as a metaphor. "Early Plum Makes Tall Trees" as a metaphor for the author's success in his early years. Then he praised the early plum, which braved the north wind, committed severe frost, floated with a faint fragrance, and was exposed to numerous things, showing innocence. The poet wrote that plum blossom was noble and fragrant, and was not afraid of the frost, which was a portrayal of the author's firmness, self-restraint, purity and innocence. He used things as a metaphor for feelings and wanted to be relegated to a distant place. Moreover, this early plum is about to wither. How sad and painful it is, the feeling of sadness can't be expressed. In fact, it's not difficult to taste the pain and loneliness in the author's heart from this poem. It's a pleasure to enjoy good things and good food with others, but he can't. He only thought of using plum as a friend in a hopeless situation, worried about the long journey, and finally gave up the idea of giving friends. The poet actually wrote plum blossoms and secretly conveyed his feelings.