From "Manual of Muad'Dib" by the Princess Irulan

Pop-hop-hop! they went, into shadows and out.
Something fell soundlessly past their eyes into the mice. There came a thin screech, a flapping of wings, and a ghostly gray bird lifted away across the basin with a small, dark shadow in its talons.
We needed that reminder , Jessica thought.
Paul continued to stare across the basin. He inhaled, sensed the softly cutting contralto smell of sage climbing the night. The predatory bird—he thought of it as the way of this desert. It had brought a stillness to the basin so unuttered that the blue-milk moonlight could almost be heard flowing across sentinel saguaro and spiked paintbrush. There was a low humming of light here more basic in its harmony than any other music in his universe.
"We'd better find a place to pitch the tent," he said. "Tomorrow we can try to find the Fremen who—"
"Most intruders here regret finding the Fremen!"
It was a heavy masculine voice chopping across his words, shattering the moment. The voice came from above them and to their right.
"Please do not run, intruders," the voice said as Paul made to withdraw into the defile. "If you run you'll only waste your body's water."
They want us for the water of our flesh! Jessica thought. Her muscles overrode all fatigue, flowed into maximum readiness without external betrayal. She pinpointed the location of the voice, thinking: Such stealth! I didn't hear him . And she realized that the owner of that voice had permitted himself only the small sounds, the natural sounds of the desert.
Another voice called from the basin's rim to their left. "Make it quick, Stil. Get their water and let's be on our way. We've little enough time before dawn."
Paul, less conditioned to emergency response than his mother, felt chagrin that he had stiffened and tried to withdraw, that he had clouded his abilities by a momentary panic. He forced himself now to obey her teachings: relax, than fall into the semblance of relaxation, then into the arrested whipsnap of muscles that can slash in any direction.
Still, he felt the edge of fear within him and knew its source. This was blind time, no future he had seen . . . and they were caught between wild Fremen whose only interest was the water carried in the flesh of two unshielded bodies.
This Fremen religious adaptation, then, is the source of what we now recognize as "The Pillars of the Universe," whose Qizara Tafwid are among us all with signs and proofs and prophecy. They bring us the Arrakeen mystical fusion whose profound beauty is typified by the stirring music built on the old forms, but stamped with the new awakening. Who has not heard and been deeply moved by "The Old Man's Hymn"?


I drove my feet through a desert
Whose mirage fluttered like a host.
Voracious for glory, greedy for danger,
I roamed the horizons of al-Kulab,
Watching time level mountains
In its search and its hunger for me.
And I saw the sparrows swiftly approach,
Bolder than the onrushing wolf.
They spread in the tree of my youth.
I heard the flock in my branches
And was caught on their beaks and claws!
—from "Arrakis Awakening" by the Princess Irulan
The man crawled across a dunetop. He was a mote caught in the glare of the noon sun. He was dressed only in torn remnants of a jubba cloak, his skin bare to the heat through the tatters. The hood had been ripped from the cloak, but the man had fashioned a turban from a torn strip of cloth. Wisps of sandy hair protruded from it, matched by a sparse beard and thick brows. Beneath the blue-within-blue eyes, remains of a dark stain spread down to his cheeks. A matted depression across mustache and beard showed where a stillsuit tube had marked out its path from nose to catchpockets.
The man stopped half across the dunecrest, arms stretched down the slipface. Blood had clotted on his back and on his arms and legs. Patches of yellow-gray sand clung to the wounds. Slowly, he brought his hands under him, pushed himself to his feet, stood there swaying. And even in this almost-random action there remained a trace of once-precise movement.
"I am Liet-Kynes," he said, addressing himself to the empty horizon, and his voice was a hoarse caricature of the strength it had known. "I am His Imperial Majesty's Planetologist," he whispered, "planetary ecologist for Arrakis. I am steward of this land."
He stumbled, fell sideways along the crusty surface of the windward face. His hands dug feebly into the sand.