Analyze the tone

But, in the desert, there was only the sound of the eternal wind, and of the hoofbeats of the animals. Even the guides spoke very little to one another. "I've crossed these sands many times," said one of the camel drivers one night. "But the desert is so huge, and the horizons so distant, that they make a person feel small, and as if he should remain silent." The boy understood intuitively what he meant, even without ever having set foot in the desert before. Whenever he saw the sea, or a fire, he fell silent, impressed by their elemental force.