Two important characteristics of maps should be noticed. A map is not the territory it represents, but, if correct, it has a similar structure to the territory, which accounts for its usefulness.
Alfred KorzybskiIf we, who live outside asylums, act as if we lived in a fictitious world- that is to say, if we are consistent with our beliefs- we cannot adjust ourselves to actual conditions, and so fall into many avoidable semantic difficulties. But the so-called normal person practically never abides by his beliefs, and when his beliefs are building for him a fictitious world, he saves his neck by not abiding by them. A so-called "insane" person acts upon his beliefs, and so cannot adjust himself to a world which is quite different from his fancy.
Alfred Korzybski