Symbolism used in Arthur Miller's Death of a Salesman. In particular, the three main uses of symbolism mentioned include machines, diamonds, and garden seeds

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…e principle of hard work, and also without taking the time to enjoy the "journey" of his life. Arthur Miller is telling us that the journey of life is hard work, where at the end of the day the only success that matters is human relationships. The American Dream has been mistaken for easy wealth, instead of the opportunity for those who work hard. Willy feels the disappointment of his future but never understands it.