Sure Joy is permitted…But not in the house of God where we are there to worship our God, Jesus and prepare ourselves for the unbloddy sacrifice he will be soon be making for us up on that altar (you know, that table looking thing where the candles and all used to reside?).
There is plenty of time afterwards for you and the Pope to do your Polka, disco, heavy metal, guitar, flute , rap music or whatever. Understand My Post Vatican II friends, that there are still some people that actually- Now hold your breath - when they go to mass like to actually not hear all of that noise and we dont need to be entertained-(Can you believe that!!! and we dont feel that need to actually PARTICIPATE FALSLY-BECAUSE WE ARE PARTICIPATING IN A REVERENT WAY) and are there to worship and reflect on our past week and how we can become better Catholics and that good old foot stompin Polka music just kinda ruins the spirit…so maybe after mass you can go hit your nearest Lawrence Welk -Pope JPII Polka Bar and do your Polka dancin there