Something to die for

So basically. We know of multi cellular organisms. There was first a singular cell. Then they divided and grouped up and that is what are organs are made of. Now there are different organs with different specialties(functions). Now this group of organs is what we are now. A group of people is a community. Another step up then it is called a city, then country. You know where im getting at. So, what if sometime in the future when all of humanity is united, what is the next step? A group of planets with a star is called a star system. After that is called a galaxy. Then a cluster. So what if all these galaxies, there is something so massive. That what is a galaxy to it is like a singular cell to us humans. And we cant detect it and it is so uncomprehensible. Since the bigger you get, time for you moves slowly. Just like how human's capacity for time is what we experience right now, Earth's time is so slow that we see it living for millions of years. The galaxy is billions. What if that something, which is bigger than the known universe, moves so slow. It could tie up all the loose ends like dark matter and black holes and light speed constant. So, who or what are you?