Sky is the Roof. We live in a united World. We can't Divide the Sky. We can't Divide the Air we breath. We live in United World and Sky is the Roof. Though we can limit our Resources. But , we can't Divide them . We can limit our Sky. We can limit our World. We can limit our time. But, we live in a United World. One World . One Land. One Mother.One Sky and Sky is the Roof. My Sky is yours.