Dream about a dead nun

I dreamt that i was at my old house( i hated this house because i always felt unsafe), and in my backyard was a cemetery. I use to stay in a flat just behind the house and my parents stayed in the main house. In my dream there were lots of people in my yard people i didn't know,it felt more like a public park to be honest but the overall feeling i got from this dream felt extremely gloomy and sad.

I had a feeling that i should tell the people to evacuate the premises as i felt that there was something not right. I ran to my flat and found my parents in my bed and they just stared at me with no facial expression ,so i ran back to the cemetery. As i got to the cemetery i saw an old box on the floor i think it had the remains of someone in it and i looked at it for a moment and notices to name plate on it but it was very old and old stained glass was covering it so i couldn't see the names and left it there on the ground where i found it.

As i looked up i saw this old obese nun just staring at me so i went to her and asked her awkwardly if she was alive or dead because she was so pale and the way she stared at me i just got the feeling that she was dead.She didn't respond she just kept staring and suddenly started screaming as if she wanted to scare me.i Could tell she was a very tormented soul and not alive anymore. After that i woke up.