Where it ends?
Start from oneself, you know your body, after this your home, town, state, nation, world, earth ok, after that clouds, atmosphere, solar system, go above sky, what will be after that, we can not know only imagine.
So we should not feel ourselves arrogant as we are only a tiny point of the universe which can not be seen even with microscope. Our living inter-depends with the other peoples and society and nature. So feel it this is inside you that can let you feel the existence.