Denny, your astronomical postings are making me anxious. How can I process that the Sombero Galaxy is 50,000 light years across and 28 million light years away? I want something that is next door and feels or tastes good, being the tiny Earth-bound human that I am. Forgive me for my misplaced focus.
Yeah, but imagine if it were 45,000 light years away and they told you it was 50,000. Would you not feel cheated and deceived?
or 25 million 
@Doug PM sent
There is a kind of a thought exercise I liked to do, sometimes, which Doug’s comment reminded me of. I mainly did this when I was younger, but I still sometimes try it.
First, I picture how big the earth is. On our scale, it’s really really big, but not so big you can’t understand it.
Then I picture how big the Sun is. I can almost always get here, but it may take a few minutes of really thinking about it.
Then I “pull back” in my head to try to visualize how big just our solar system is. I can’t always really do this, sometimes I think I “get” it and other times I know it’s just plain out of reach.
Then I try to picture how big just our arm of our galaxy is. I always fail. I understand the numbers, but cannot visualize in my mind a structure of that size. The mind just shudders away from it.
–James