When finally they climbed atop it, the ereg [erg, sand sea] with its sea of motionless waves lay all about them. They did not stop to look: absolute silence is too powerful once one has trusted oneself to it for an instant, its spell too difficult to break.

No man can live this life and emerge unchanged. He will carry, however faint, the imprint of the desert, the brand which marks the nomad; and he will have within him the yearning to return, weak or insistent according to his nature. For this cruel land can cast a spell which no temperate clime can match.

For this was the real desert where differences of race and colour, of wealth and social standing, are almost meaningless; where coverings of pretence are stripped away and basic truths emerge. It was a place where men live close together. Here, to be alone was to feel at once the weight of fear, for the nakedness of this land was more terrifying than the darkest forest at dead of night.