The only prison language creates that I can see is the limits language places on communicating your mind to others.

I don't think in language, I think in feelings and shapes, mathematics and even three dimensions easily.

I cannot however communicate that fully with language, enough to allow another to truly know my thoughts.

So in a way we are each in our own little prison of sorts you could say. Some people more than others. Without language and other forms of communication we use we would be in solitary confinement.