Kynes passed a hard glare over the Duke and Paul, said: “Most of the desert natives here are a superstitious lot. Pay no attention to them. They mean no harm.” But he thought of the words of the legend: “They will greet you with Holy Words and your gifts will be a blessing.” Leto’s assessment of Kynes—based partly on Hawat’s brief verbal report (guarded and full of suspicions)—suddenly crystallized: the man was Fremen. Kynes had come with a Fremen escort, which could mean simply that the Fremen were testing their new freedom to enter urban areas—but it had seemed an honor guard. And by his manner, Kynes was a proud man, accustomed to freedom, his tongue and his manner guarded only by his own suspicions. Paul’s question had been direct and pertinent. Kynes had gone native.
Herbert, Frank. Dune (p. 176). Penguin Publishing Group. Kindle Edition.