The object of Hearts is 2-fold:

First and most often done is to avoid getting the Q and the
Or
Try to get the Q AND ALL of the That's called Shooting the Moon and is difficult but not impossible, you just have to have enough strength to pull it off.

The Queen carries a penalty of 13 points, and the hearts are 1 point a piece. IF you get all of them, instead of getting penalized You are credited with -26 points. Again, difficult, but not impossible.