I would say, “Do you know how this universe we live in came about? Do you have a feeling for how it all started and how it developed to the point that we have the things we have around us? That's what we're studying.”
We have this tremendous description of a big bang 13 billion years ago and the way in which things evolved to the present time. It's an understanding of our history at a very profound level. It's how everything started and how it got to be the way it is today for the whole world.