For an illustration of the map and territory disconnect you merely need to step outside and look up to the sky. What you see, is always a representation, a map, as perceived by your eyes, then implicitly arranged and interpreted by you.
So then, what does that map show you, when you look up? It depends of course, on the time of day, for you.
During bright daylight you will notice the sun, perhaps glance at it, but mostly avert your eyes. You do not think of the ongoing nuclear reactions and associated radiation occurring there, but you are concerned about the sunshine’s brightness, the blinding irritation you feel when you look at it.
Sometimes you will see the moon during the day, perhaps think of it as a fun oddity. It might be bright, but will not be blinding, so is much more fun (and safer) to look at.
And that is kind of it. Of course, you realize there are stars and other planets up there. That reality does not change, just because you cannot see them.
Sometimes you can see better when it is dark. A clear, dark night reveals a different map. The sun is illuminating the other side of the Earth, so yours gets the benefit of darkness. Looking up you may again see the moon, clearer this time. You may also see, with the naked eye, a dark sky apparently filled with dots of light, some moving, many seemingly stationary.
This map shows more detail. It is of course still wrong, not just for what it is missing, but also for what it is showing. Everything you see is in motion, when you see it, none will actually be in the same position by the time you see it. Worse yet, some of what you see is light that has been traveling for a very long time. Its source may of course not exist at all anymore.
Scale and distance are largely invisible in what you see, as you look up. As such it is not obvious that some of those tiny dots that you see in night sky belong to stars that are much, much larger than the star that you know as the sun. And of course the Earth’s moon is both much larger in comparative appearance and (often dramatically) smaller in actual reality.
Cloud cover and poor air quality will of course affect how well you can see. The less cloud cover and the better the air, the better the view.
In the wider Seattle area, the phrase “The Mountain is out!” is generally well understood to refer to the fact that the day and sky are clear enough that you are able to see Mount Rainier. It is similar to how you might exclaim, during a clear dark night that “the stars are out!”
Though the statements kind of make it seem that way, neither mountain nor stars did anything in particular that day (or night) to make themselves visible. But we know what we mean.
Both our verbal and visual maps are easily disconnected from their terrain. It is easy to see and just as easy to not notice.