Noticing.

“Carry this with you on your journey," he said softly, "for there is much worth noticing that often escapes the eye. Through it you can see everything from the tender moss in a sidewalk crack to the glow of the farthest star — and, most important of all, you can see things as they really are, not just as they seem to be. It's my gift to you.”

Norton Juster, from Phantom Tollbooth