Nightmare scare

Today, I had the most unpleasant nightmare so far in my life and that is saying something since my nightmare of being chased by a giant caterpillar was horrifying (scared of caterpillars).

Nightmare:

I can't remember who, but at the start of the dream, I was peeking at a woman slaughtering a pig. It kind of had a psychotic murderer feel to it so I thought hiding would be best because I don't want her to chase me. Later on, my friends and I are in the middle of a bushland and my younger brother disappeared.

Everyone panicked. So we all started searching for him, wondering if he got murdered/kidnapped or tripped and died. We found his dead body.    I don't really remember what happened after but then we started placing limbs together until there was a whole body but that doesn't make sense because the body was whole to start with. Then there was a voice in my head that said "But nobody realised that there was no head" (Talk about freaky). The thing was, somehow in the dream, everyone thought that he was killed by the pig killer mentioned above.

Next, I was at this local buddhist monastry that I regularly visit, with my friend Jenny who is also buddhist. For some reason, we were at the back and we saw pig limbs hanging (like in butchers) and we freaked. Then a nun told us that there was this other nun that was acting weird. That nun ate the pig. We suddenly realised that that nun was the pig killer and also the muderer of my brother!!!

Out of no where, we heard this psychotic laughter so we ran for our lives. Then there was this voice that  told me that I couldn't run on ground level or first floor or I would be punished by God. But then, the surroundings, didn't look like the monastry anymore but rather my high school. I ran upstairs, keeping in mind the words of warning but then I couldn't star upstairs so I ran down the other stairs and reached the outside (ground level).

I continued running, but my legs were getting weak (in reality: I also have a sort of weak body) and in the corner of my left eye, I could see a woman carrying a massive butcher knife.

I woke up.

When I woke up, I realised that I had this dream before but it wasn't as frightening the first time for some reason.
I just remembered this is the 2nd time that I dreamt my younger brother's death. . .


What does it all mean? I have a bad feeling about it.