Should Latin mass be brought back?

[exnihilo]

That the Rosary is an effective spiritual weapon is a private revelation, so no, I don’t believe that.

No, it is a teaching of Popes and other bishops and therefore the Magisterium. We are obliged to give religious submission to the Magisterium.

 

[Don_Ruggero]

an effective spiritual weapon against the evils afflicting society

That is an evaluation by the Pope that underscores why the Rosary is a pious practice worthy of the consideration of the faithful in their life of prayer. Of course, the Rosary is not the only or even the best “effective spiritual weapon against the evils afflicting society” – and that is to be underscored.