Doorway's compete for your attention like a person looking for their suitor or like a flower attracting an insect. The more flamboyant the doorway, the more it is apt to draw attention. But, not every doorway attracts the random seeker. There has to be some hidden law of attraction that makes one gravitate to a door way and say, "hmmm, this one is interesting, I need to check it out" or "yikes, run away".
