How does Stephen King use imagery in The Dead Zone?

Examples of Imagery:

"He was alone now, walking down this gloomy and deserted hall of shadows. And it began to seem to him that it wasn't an illusion or a mirage or a dream - at least not of the ordinary kind."

"So many things had gotten strange so fast that all he could do was feel his way slowly along, groping like a blind man in an unfamiliar room."