Here are some question for you: can you think of any things you cannot think of in your language? Hints. Beethoven, Van Gogh, 7. Can a democracy evolve from FaceBook? What kind of political system can evolve from FaceBook? Is there a language for Democracies? The important thing is not the answer, but the thinking.
Lots of poetry makes no sense if you consider it to be a series of words to be literally interpreted according to a grammar rules and a dictionary. But it can often hint at meanings and ideas that can't be expressed directly.
Of course, there are some things that always remain that are harder to get rid of. That's not "lack of language preventing you from thinking things", but rather "assumptions so deeply built into language that it is hard, though perhaps not impossible, to escape them".