"eye moves around the image"
Can someone explain (or post a link that explains) what exactly is meant by the oft-heard statement of composition to think about how the eyes move around the picture.
When I look at a picture, as far as I can tell, my eyes move to the part I want to look at. Sometimes I just systematically look at the different parts of the picture. I actively step back to look at the whole, sometimes squint, and actively look at various details. What is happening passively that I don't know about?
Can anyone post clear examples of bad composition that if I try to look at it my eyes keep somehow looking away?
And examples of good composition where I can't look away?
And is that the goal to have images people don't look away from? What is the goal?