Jiang Yan lived during the Liang dynasty of the Northern and Southern Dynasties Period, in the area now known as Henan province.
Jiang Yan once had a dream that a man came to him and said, "My name is Guo Pu. One of my pens has been here with your for several years. Please give it back to me now."
In his pocket, Jiang Yan found a multi-colored pen, which he returned to Guo Po.
As Jiang Yan grew older,the poems and essays that he wrote were not as good as those he had written when he was younger.
Everyone said that when Jiang Yan gave away his multi-colored pen, he used up the last of his talent.