Don Quixote is the archetype of the dreamer - his madness is a protest against a world that has lost enchantment and authenticity. His optimism, resilience, and capacity for self-reflection challenge the reader to hope, persist, and learn.
Sancho Panza is the everyman, practical yet open to possibility. He shows how friendship and open-mindedness can lead to growth, even in the most unlikely circumstances.
Dulcinea del Toboso is a symbol for the ideals we pursue, unreachable yet transformative because they give us purpose.