re: Things you can’t wrap your head around

Space does it for me and the fact that it will thousands of years or maybe never before we are able to explore what's out there. I think our only hope is from an alien life form that has an energy source not found on earth.

If there is an end to the universe,which I don't think there is, what's out there?

As others have said, time, knowing in a few hundred years my existence and my kids existence won't matter to anyone, just like millions that have died since the first human walked the earth.

If the universe started with a big bang imagine how big that mass was to hold everything that's in the universe now.

How a star can burn for billions of years. And how everything in the universe just seemed to figure itself out and work together to not continue destroying itself. Sure seems like someone had a hand in lining it all out.