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…showed last 75 words of 2170 total…to his town of Caladan. He accomplishes this goal by being aware of the dangerous Harkonnens that follow him, and by having to fight and defeat them. I believe Frank Herbert is trying to tell his readers that life is full of obstacles and that you should never let your guard down, and do what ever means necessary to achieve your goal, as long as you are not offending or hurting someone in the process.