> Is this intended to just be for people who can read them, or am I supposed to just keep reading and pretend that I understand what's being said?

You may also keep reading and not pretend that you understand what it says, like I did.

The Péchés de Vieillesse really are quite delightful (first recording I found) https://www.youtube.com/watch?v=N4xqLvT-Esk