Throughout Death of a Salesman, Willy pursues concrete evidence of his worth and success. He is entranced by the very physical, tangible results of Ben’s diamond mining efforts and strives to validate his own life by claiming concrete success. Willy projects his own obsession with material achievement onto his sons, who struggle with a conflict between their intangible needs and the pressure to succeed materially.
Willy’s obsession with obtaining concrete evidence of success distracts him from recognizing the important intangibles in his life, particularly the love of his family members.