Presumably, Scytale is trying to convince Paul to bring Chani to sietch so that the Guild can kill her. The Guild is likely eager to dispose of Chani now that she is due to give birth to Paul’s heir. Scytale’s failure to convince Paul is a reminder that no character in the Dune universe is truly trapped; every person has a possibility for escape. In terms of fate, this suggests that, although each person has an inevitable fate, they may also face unexpected circumstances. Scytale falters when he remembers this, revealing that he made the mistake of thinking that anything in the universe could be inevitable.