Arrakis teaches the attitude of the knife - chopping off what's incomplete and saying: 'Now, it's complete because it's ended here.' - from "Collected Sayings of Maud'Dib'' by the Princess Irulan
Think on it, Chani: the princess will have the name, yet she'll live as less than a concubine - never to know a moment of tenderness from the man to whom she's bound. While we, Chani, we who carry the name of concubine - history will call us wives.
What do you despise? By this are you truly known.
Deep in the human unconscious is a pervasive need for a logical universe that makes sense. But the real universe is always one step beyond logic.