How does Robert Jordan use imagery in The Great Hunt?

Imagery:

"Suddenly—a drifting, distant thought—he realized that the void surrounded him. Saidin sang, and the sphere pulsed—even without looking, he could feel it—and the thought came that if he sang the song saidin sang, that huge stone face would open its mouth and sing with him. With him and with saidin. All one."

"'The time comes closer, Lews Therin. A thousand threads draw tight, and soon you will be tied and trapped, set to a course you cannot change. Madness. Death. Before you die, will you once more kill everything you love?"