You want to improve on your aim as you practice.
You need to learn how to control the direction of the ball flight.
You want to learn the trajectory of each club or improve on accuracy and swing path.
You over think your swing and have aiming problems.
You consistently hit straight to the right or left.
You need to improve your aim on putts.
You keep aiming or hitting too far right if you are right handed or left if you are left handed.
You hook or slice the ball but do not have the time to correct it before playing your next round or tournament.
You want to learn how to make the ball curve around obstacles.
You have a hard time visualizing the ball landing at your selected target.