A Big, Big World

There are times when I wonder about the size of the world. It must be very big, especially compared to small dogs like us Chihuahuas. I have travelled for long times by car, and cars travel much faster than I can walk. It is still said that these long journeys are short compared to the whole world. Then there is space above us, much more than the size of Earth. I cannot fathom the size, but I do not think there is ever an end to it, because what would be beyond this end? It is a big, big world we live in.