In Isabel Allende's "Island Beneath the Sea," the quote "The mother and the homeland cannot be joking: they are holy" emphasizes the deep reverence and sanctity associated with motherhood and one's country. These elements are portrayed as foundational to identity and values, suggesting that they hold profound significance in a person's life. Allende underscores the idea that both maternal figures and one's homeland deserve respect and love, reaffirming their vital roles in shaping individual and collective experiences.

This notion can be seen throughout the narrative, where characters grapple with their identities, influenced by their mothers and the cultural ties to their homeland. The urgency and seriousness of these relationships highlight how personal and national histories are intertwined, impacting the choices and destinies of the individuals. Allende's work invites readers to reflect on the sacredness attributed to family and homeland, emphasizing their timeless importance across generations.