When Jiang Yan was young, he dreamed of having a five-color pen, so Wen made a fortune. Later, he dreamed that Guo Pu wanted the pen he gave him back. There were no beautiful sentences in his poems. Later, he used "Jiang Yan's dream pen, dream pen, dream pen" as a metaphor for literary progress; Use "Jiang Yan colored pen, Guo Puhua, five-color pen, five-color brush, Guo Pu brush, colored pen, colored brush, Jiang Yan pen, Jiangling pen, Jiang pen, Wen Tong pen" to refer to the pen power of literary thinking, which means outstanding literary talent and extraordinary pen power. With "Jiang Lang exhausted, Jiang Yan exhausted, Jiang Yan lost his pen, and his dream lost his pen", he is not as strong as before.