The song of the seven sons, which we often listen to, is only the first of the seven sons.
In the poem, Wen Yiduo compares seven pieces of "lost land" plundered by foreign powers to seven children who are far away from their mothers, crying about their strong feelings of being bullied by foreign countries and eager to return to their mothers' arms. On the one hand, poetry expresses nostalgia and praise for the motherland, on the other hand, it expresses the curse to the imperialist powers.