Darling ghost, often in the anime that I have watched, the world is changed by one person. The world is saved or destroyed and changed by just one person. One person who fight for another person. The measures and risk they take to protect their love is frighteningly beautiful. No matter how big the world is, to them their world is just one person. Therefore, their effort to save that one person they love, gave them the ability to change the future of the world they live in. Perhaps that's why people say, "it's a small world after all." My world is big, wide and unexplored. Can I be able to concentrate my world into one person? No, maybe not because this is a real world.
Your lil person.