The quote reflects the historical context of Chinese society, where space and resources have always been closely guarded due to the densely populated nature of the country. This scarcity leads to a strong instinct among individuals to protect their own territory and possessions fiercely. The emphasis on guarding one's space is a recurring theme throughout Chinese history, from ancient dynasties to modern times.

In "The Bourne Supremacy," Robert Ludlum uses this sentiment to illustrate how characters react to pressures in a world that feels constricted. This notion of guarding one's own suggests deeper themes of survival, loyalty, and cultural identity, connecting the characters’ struggles to a broader historical perspective of Chinese traditions and values regarding space and security.