Silene is the Saint of decomposition. She manifests as a green fox with her chest torn open, containing a big plant bulb, and a white Silene flower growing out of her left orbit.
Silene is the protector of those spirits that can't leave their bodies immediately after death. She has a beautiful and soothing voice, and she'll sing sweet songs about how bodies will turn into wonderful flowers, to make the imprisoned spirits feel less alone while they struggle to get free.

P. G. R. means "per grazia ricevuta", "for received grace". Those are little artistic things made by people that believe they've received a grace from some Saint to thank them, small paintings, trinkets, crosstitches etc. and you can find these hanging from the wall in many Italian churches. You may not believe - I don't for sure - but this is some strong, energetic art.