Throwing an object (such as a ball) to someone can represent an invitation to dialog, play, or otherwise participate with the thrower. It can also represent giving, as in giving power to that person or giving them a turn, or handing something off (as in “now the ball is in your court”). Throwing something at someone with intent to hurt them can represent feeling a loss of control, anger, frustration, jealousy, or a desire for that person to go away, or other emotion. Throwing an object with intent to scare a person represents an attempt to gain power over them or intimidate them into doing something you want, or not doing something you don’t want.