Learning a new language is often accompanied by the very real feeling of your "mind expanding." I think that's because being able to understand/speak another language is almost like experiencing a whole new world; another rich set of culture, people, literature, etc different from yours suddenly become very much accessible.
The Wittgenstein adage
> The limits of my language mean the limits of my world
The Wittgenstein adage
> The limits of my language mean the limits of my world
rings true for me.