boxing is this: punches are just shapes moving through space in the same way that chess pieces are just representations of shapes moving on a chess board. these shapes join up and form into patterns, and, these patterns too, form into shapes. those patterns, and the shapes they take on, merge and mesh with other patterns and their shapes to occasionally produce collisions. to box is to take all of your shapes and all of your patterns and design out of them all a collision course. done properly, you will only need to make one.