You are at a huge disadvantage when returning a serve.
- The server gets to hit the ball at you as hard as they can.
- The server gets to hit the serve directly at your weakness.
- You occupy the worst position in the court.
- If your opponent wins the rally, you will lose a point.
So a good return of service will allow you to get in front of your opponent and force them to make a shot from the back of the court. Generally speaking, the most effective way to accomplish this is to return the serve with a ceiling ball.
It is vital to be in a ready position when returning the serve. Your racquet needs to be up in front of you at chest level and held with a backhand grip.