Language is not essential for the cognitive processes that underlie thought

Considering that, in 2024, if not a majority, then, still, a vast portion of our consciousness is words. Perhaps not for the illiterate, but for many, much of our knowledge is through the written or spoken word. [Edit: Even a hypothetical person, alone and isolated, never having spoken, would still devise internal language structures, at least for the external realm. ]

Base consciousness is surely not dependent on language, but I suspect base consciousness may be extremely different from what one might expect, so much that compared to what we perceive as consciousness, might seem something close to death.

Well, I'm not sure cognition entirely without language is even possible for non larval humans. Language is a natural tendency and it arises regardless of documentation, scribblings or utterings. It exists whether audible or not. Language itself is manifestation of the thinking process that permits it.

And I'll hold to the notion that the complete absence of language (and its underlying structure) would resemble death if death can be resembled. Perhaps death is only the excoriation of thought, cognition and language, with something more fundamental persisting.