Humans, like other species, are inherently multimedia . We are the multimedia device par excellance. Even while we talk or sign in human languages, it would be excessive to think that a given mental state could be represented just through one language. The brain, if we have one, possesses mental states. They produce a sort of tepid ooze which we call cognition.
Cognition contains a map of reality.
Thus reality is actually contained in an ooze that emerges from a physiological mental state. But we still have no means of poking at our mental states. So we are left with language to believe that language is all there is to the mental representation of reality. That's all I know about the brain. Now, about society.