Although the excerpt is not presented here, we can still look at what the carp symbolizes in the poem in general. The poem "The Carp" is dedicated to Yun Wang's father, and it discusses his imprisonment during the Cultural Revolution.
This was a period of great change during which intellectuals, political dissenters and other revolutionary people were imprisoned by the Communist Party in order to eliminate opposition to its rule. The author talks about her father's work as a teacher, and the positivity of the carp is contrasted with the negative experiences that her father had during his imprisonment.