I am studying the Scarlet Letter. What is the difference between identifying the motifs in the novel and identifying its conflict(s)?

Motifs
are a recurring theme, subject or idea in a literary work that help to develop or convey the
work's overall theme or message.

• Weeds are seen throughout
  . In "The Prison Door" we see reference to ugly weeds taking root
  in the "congenial soil" surrounding the prison.  These weeds are seen throughout the
  novel, evenis compared to a weed.

When we study a work's
conflict, we are looking at the overall struggle in...