Properly aiming your club and body depends heavily on your grasp of a series of straight lines. In golf, the straight lines appear straight only if you observe them from directly behind the ball.
This is where you are at a disadvantage in golf, because you are not behind the ball as you play it. You can, however, properly aim yourself and the club by following a certain sequence of events, one that allows you to gain orientation to the target from behind the ball before you move around to the side of the ball to swing the club. The start of that sequence of events begins like everything else in golf - with the selection of a target.
Exactly which point you pick as a target varies from shot to shot and from club to club, because you must consider what the ball will do once it strikes the ground - and often overlooked aspect of playing a shot. The ball reacts differently depending on the angle at which it strikes the ground.
The steeper the angle at which the ball hits the ground, the less it rolls once it has landed. Remember, however, that for aiming purposes your target is always the point at which you wish the ball to hit the ground. Where the ball will stop is not a consideration in aiming your body.
Before you select a club, stand behind the ball and get acquainted with the shot you are about to play. If that shot is played from the tee box, you know you are going to have a good lie because you should tee the ball up for every tee shot.
For any other shot, the first thing you should do is assess the lie of the ball. This is important; you cannot decide on your target (or your club) until you have assessed the lie of your ball.