The quote from "Don Quixote" by Miguel de Cervantes expresses a profound appreciation for the impact of someone's kindness and compassion. The speaker suggests that their mercy has nurtured their creativity and intellect, likening it to fertilizer that helps growth in barren soil. This metaphor highlights the transformative power of empathy and support in fostering new ideas and inspiration in someone's life.

Through this imagery, Cervantes emphasizes the importance of human connection and the ability of one person's nurturing attitude to cultivate potential in another. The speaker acknowledges that their prior state was dry and unproductive, but the introduction of mercy has revitalized their thoughts, allowing for the blossoming of ingenuity. This illustrates the idea that love and understanding can drive personal growth and creativity.