"Nanas de la Cebolla" is a song by Spanish singer-songwriter Joan Manuel Serrat, based on the poetry of Miguel Hernández. The song tells a poignant story of poverty, suffering, and resilience. The lyrics describe a scene of despair and hardship, comparing the onion (cebolla) to frost and poverty. The reference to "your days and my nights" implies that the struggles faced are ongoing and affect both the speaker and their loved ones. The second verse depicts a mother nourishing her child with the blood of onions, highlighting the extreme poverty and lack of sustenance. The image of "onion blood" combined with the sweet and icy nature of sugar further emphasizes the contrasting and harsh realities. The song then introduces a strong and determined woman, symbolized by the moon, who spills her light upon the cradle. This woman, representing hope and strength, offers laughter and the promise of a brighter future to the child. The child's laughter is described as liberating, as it removes solitude and brings freedom. As the child grows, their laughter becomes a powerful weapon, victorious against flowers and birds, and rivaling even the sun. The laughter is also seen as the future of the speaker's bones and love. The song concludes with a reflection on the fleeting nature of childhood and a plea for the child to remain happy and continue defending laughter. The mention of the eighth month and the symbolism of teeth becoming weapons allude to the child's eventual departure from innocence and entry into the harsh realities of the world. Overall, "Nanas de la Cebolla" is a deeply emotional and poignant song that portrays the resilience of the human spirit in the face of adversity. It speaks of the power of laughter, strength derived from love, and the hope for a better future despite difficult circumstances.