What does NORA mean when she says and rdquoHe was a salmon traveling upstream though his past and ldquo?

When Nora refers to someone as "a salmon traveling upstream through his past," she is suggesting that the person is struggling against the current of their own history or experiences. Just as salmon swim upstream to return to their origins, the individual is confronting and grappling with their past, facing challenges and obstacles along the way. This metaphor highlights the difficulty of revisiting painful memories or unresolved issues, emphasizing the effort required to overcome them.