Nightmare??

I was asleep one day when I started having a nightmare..all of a sudden im in a church and its all like 3rd person view..this nurse is taking care of a little girls knee when all of a sudden the girl says “what are those round things in the top floor?” the nurse looks at her and says “what round things” the little girl responds “the round things up there…they spell b.o.m.b on them…” then the nurse looks at her scared and another nun comes into the room with a checklist and they both look at the nun..the nun says “what, nuns cant make noises when walking? And they all laugh except the nurse…then like 2 seconds later, the whole place blows up and everyone is screaming and crying and im in my room, when the smoke goes away, theres a girl standing with her back to me bleeding. I try to turn her around but she tries to cut me with a piece of glass and when I look at her shes all cut up from head to toe..so theres a big fight between me and her just running everywhere and I push her down the steps..and out of nowhere comes a lady with a gun and shes crying saying shes sorry, so before she shoots I run into a room, open the window, land into another house and when I step into the house I wake up…does anyone know if this is my brain telling me my body or mind or w/e is in some self conflict or was it just a random nightmare???