Most people live with a bag over their head.
They treat sight as a convenient method of avoiding bumping into things or watching television.
Another symptom of bagged head is fixed view.
Most people's lives are like sitting facing forwards on a train where everything rushes past in a blur, instead of sitting with their back to the engine in visual comfort to let the landscape scroll by.
Looking is giving direction to one's sight.
Most of us, faced with a scene, look at it rather than look into it.
What you see and what you notice aren't the same thing.