There are two sets of five dots, one set on the right side of the lane and one on the left. Note that the only dot that lines up with an arrow is the second dot with the first arrow. Remember that the dots are halfway between the arrows and the foul line. Therefore, if you want the ball to travel a path that starts out at board 17 and hit board 11 at the arrows, all you have to do is figure out what board is halfway between 17 and 11. Taking the average of those two numbers, we find that one should aim at board 14, which is the fifth dot.
Bowlers find it useful to look at the dots in many instances.
If there is a lot of oil on the lane, looking closer to the foul line sometimes help the ball roll sooner. Some bowlers don't like looking out all the way to the arrows, as it makes them dizzy, or just simply uncomfortable. Also remember that the closer something is, the easier it is to hit. The last point, and probably the toughest challenge, is the breakpoint. What makes the breakpoint interesting is that it's always different depending on the lane conditions.