When you dream ball means: Carl Jung, a dreammaster believed that the ball was a sign of completeness and individuation. As the circle connects to the self, so does any other round. The ball hitting your face can be a sign of danger or warning that something might happen. A ball that lights up in your dreams is either a sign of danger or illumination. A ball bearing is a symbol of an outpouring or forceful expression of unrepressed emotions or thoughts.
(in Dream Dictionary)