Something I really love in dune part 2, is the juxtaposition of chani's reaction during the war council scene and the ending scene.
In the war council scene everyone is on their knees but when Paul declares himself the mahdi and says he'll lead them to paradise, they all jump to their feet and shout lisan al gaib, chani however is the only one to stay on her knees, kept there by her disbelief and devastation along with her refusal to exalt him like everyone else.
Then you have the end scene where paul becomes Emperor which both compliments and contrasts with the council scene, here everyone was standing and they all sink to their knees, but this time chani stays on her feet, she's all anger and defiance, paul promised to be her equal and she'll never willingly bow to him.