If you are cutting the object ball to the left, and you aim the object ball at the near edge of the pocket, and you aim your cue a little to the right of center on the cue ball and:
1. You hit your aim point on the cue ball, then the object ball will be thrown into the middle of the pocket.
2. If you miss your aim point on the cue ball a little to the left, you will hit the center of the cue ball, and the object ball will go in the right side of the pocket (where you aimed the object ball).
3. If you miss your aim point on the cue ball a little to the right, you will get more throw than you planned on, so instead of going into the middle of the pocket, the object ball will be thrown into the left side of the pocket.