How does miller use tension in the family to underscore willy's character?

In "Death of a Salesman," Miller uses tension within the Loman family to highlight Willy's insecurities, delusions, and internal conflicts. The strained relationships between Willy and his sons, Biff and Happy, as well as his wife Linda, reveal Willy's inability to face reality and his desperate need for validation and success. The family dynamics create a backdrop against which Willy's flaws and self-destructive behaviors become more pronounced.