Note: the territory of "ancestors", not "motherland" is a famous saying of Li Gang in the Song Dynasty. He opposed gold. Li gang strongly opposed the south flight and advocated loyal opposition. Li Gang said that Qin Zong: "The land of ancestors should be guarded to the death, and people should not be counted." Qinzong Kingdom of Ghana said that Li Gang was promoted to assistant minister of the Ministry of War.

It means: No matter what, we should hold on to the land left by our ancestors and not give an inch of land to others.

It seems to have something to do with Lin Zexu.