Walter's attitude towards money changes over the course of Hansberry's work. At the start of the play and from that point, Walter is driven by money. His anticipation of the life insurance check is one that reflects this. It is money that he believes is the secret to his happiness. He equates his unhappiness and his condition in life to be linked to money and the lack of it. Money seems to be the underlying force to Walter's life. He is unable to see anything past or beyond it. When Lindner offers to buy Walter out from moving to Clybourne Park, it is a critical moment because the audience has to wonder if Walter will acquiesce to the presence of money. When he ends up rejecting it and does the right thing for his family, it is a moment when we see Walter acknowledge the role of money, but also place it in a context where it is not the totalizing force that it had been for Walter for so long.