Siddhartha is a novel about a man's journey to find wisdom. He learns that wisdom cannot be taught, but must be found within oneself. He discovers that true wisdom is the ability to live in harmony with the world, to be free from goals, and to find joy in the present moment. He also learns that the world is never one-sided, and that no one is completely good or bad. Ultimately, he learns to love the world and all its creatures with admiration and respect.