Unseen Yet Known

I may not see the Wind, But I know it's there. I see it in a shaking leaf The moving clouds The empty soda can as it Clackety clacks down the street. I feel the Wind as a Summer's breeze I see it's force in a hurricane and tornado. Without the Wind, my sails would be lifeless, My mill wouldn't turn, My kite wouldn't fly. Wind....just because I don't see you, does not mean you don't exist....