An image is a bridge between evoked emotion and conscious knowledge; words are the cables that hold up the bridge. Images are more direct, more immediate than words, and closer to the unconscious. Picture language precedes thinking in words; the metaphorical mind precedes analytical consciousness.
I started out in psychedelic drugs, and people said it was a flight from reality. It still is a flight from reality, but I think reality is now a bit more scary than the drugs we used to fly from it, so long ago.