Few things are as central to human social being, identity and interaction as language (Fairclough, 2001; Lupyan, 2015). Language shapes the ways that we perceive of and understand “reality” (Morand, 2000; Sapir, 1981). Indeed, “reality” is itself a human concept that we encode via the so-called signifier “reality” in order to describe something “out there” and assign it meaning so that we can begin to make sense of that thing.
Without language of some kind – with language here broadly defined to include all forms of signed and spoken language, including facial expressions, etc., we humans would have no way to communicate with each other about this thing we call “reality.”
Most human beings – probably nearly all – spend vast amounts of their day thinking, and, for the most part, they are thinking in language – talking to themselves and to others endlessly, and internally, in a near endless loop of internal talk and speech (Vygotsky, 1984).
Not only can we not collectively and socially refer to, and communicate about, something called “reality” without some sort of language, we can’t really make sense of the world in which we live, both the natural and social world, without language. We are constantly in the act of naming and categorizing things. We use these names and categories to create meaning and we share our meaning(s) via the stories that we tell to ourselves and others about ourselves and about others as well as about the “objective” natural world (Geertz, 1973).