What narrative evidence suggests Cobb has achieved catharsis and accepted reality in

[MasonJ]

I just rewatched Inception for the third time, and I'm still debating the final scene's meaning with friends. While I understand the popular theories about the spinning top and Cobb's totem, I'm more interested in the emotional resolution of his character arc versus a purely literal plot explanation. For fellow fans who've analyzed the film deeply, what narrative or thematic evidence supports the idea that Cobb has achieved catharsis and accepted his reality, regardless of whether the final scene is a dream or not?