Using the targets on the lane is a great way to be able to throw the ball properly and also be consistent and accurate. On a bowling lane you have a few sets of target areas that you need to use. You have the second set of dots after the foul line and then you have the arrows or the diamonds a few feet in front of there.
By using the targets on a lane you can create a path. And by creating a path you become more visually comfortable. Besides the pins themselves, you have the dots and arrows to basically connect to each other to create a path down the lane that's not only a visual aid but it's also a physical aid.
Your physical approach is going to be based on what you're looking at. So by using the dots and the arrows you're going to actually help yourself create the best angle and also the proper position at the foul line. By using the dots and arrows you create a more visual aid to help you create a path down the lane.
Depending on your size, your height, and also your style, you may use the dots that are closer or you may use the arrows that are further away. Generally most people use the arrows because they're more of a larger visual aid but by using the dots and the arrows you create a path.
You can create different angles and you also create speed by looking closer or further. You may throw it a little slower or a little faster by where your position is on the lane with your eyes. By using them you're going to be able to get the ball down the lane and create angles and also combat the conditions. And that's how you use the arrows and dots.