What are some things that you simply can’t understand without knowing the language?

I know that language and culture go hand in hand and that you can’t have one without the other, so I’m curious to know what is it that we can’t understand in other cultures without speaking the language, and by this I mean specific movies, books, podcasts, etc. (things you can’t find translated). Now please don’t tell me things we obviously can’t understand, like Humor, idioms, onomatopoeia, etc. I want to know about specific things that you can’t understand without knowing the language. Thanks