"What is the fear inside language?" writes Anne Carson in her meditations titled, The Anthropology of Water. Because I've been wondering the same. Is it the depths of where it can lead us, with our crudely formed philosophies and dissection of inner thoughts? Or the fact that we can not pinpoint everything we experience by applying simple labels. Or that there is no permanence to language, and that as soon as an observation is spoken or recorded, the moment has passed and has become obsolete.
Language is indeed broad, a shape-shifting agent of "what is". We can not talk about things we don't have words for. And how about all those things that go undescribed and non-registering--what else is lying there between the letters and lines and phrases?
If "there exists an aorist verb system" in other languages, that can not only capture the essence of reality, but the present, present tense, "a man at noon standing atop of his own shadow," then it is proof enough for me to recognize that we are truly limiting ourselves of where language can take us.