What are seeing a dead grandmother dreams about?

So about 3 days ago I had by far the most vivid Dream I ever had... It started out with a very young version of my grandfather(who died right before I was born) he just kinda started at me and me at him as I walked passed him, I just kinda looked at him like A ghost and then he left when someone called his name, after that I saw my grand mother who died when I was about 8 asking me for help pulling off the cream of a maple leaf cookie in the kitchen, she was about 70 in the dream(and it turns out after asking my mom she used to do that in real life)... and a bunch of other crazy stuff happened but that’s the main thing... I would love some information... any help if very appreciated!

Dreaming about dead people... I had a dream this night. IT was a party at a house. For some reason I was in the bathroom with 3 other Guys. I think I Saw Them on campus one time, but I don't really know them. Anyway, we were listening to music. IT was driveway from Lil peep. Some girls came in and they wanted to do make up so we had to skeet. But we wouldn't go. We were singing along with the song and annoying the girls... Then suddenly Lil peep was standing in the door. He is dead for 3 years. And he was smiling because we were having fun with the song. Then we really dipped because I Saw that hè was trying to get to talk to one of the girls... When I walked past him I wispered something in his ear. And then I was gone...

Freaky shit. But at the same time it feels really good.

This also happened with a dead grandma singing a song with my other grandma (Alive). She's been dead for 1 year now...

My question is... Did one of you redditors also once had a dream about someone who passed away? And were they a celebrity?

So I have a fear of death especially in my sleep and horrible health anxiety. Last night I dreamed of seeing her in the car and I said how are you here you’re dead, and she looked straight at me and said you’re next. And then I felt myself fighting to wake and telling god no I’m not ready. I’m honestly really scared this means I’m gonna die

In my dream my parents, siblings, grandma, and I were walking together as a group on an empty side walk next to a semi-busy one-lane city road. Both sides of the road have the side walk. The sky had a pretty orange and pink sunset, despite all of us coming back from watching 4th of July fireworks over our city's lake. The scenery was pretty, ignoring the cars and street we were basically on a little hill that overlooked the lake and other bushes, flower beds, and trees.

We've stopped to say our goodbyes. We all take turns having very emotional hugs with her, wishing her the best. She looked semi-in shape. She could still walk and had a head full of hair. We're aware of how frail she is so we make sure not to hug her too hard. We're also aware that this might be the last time we see her. So everything just felt very sad. Her last words to me in this dream were something along the lines of "always remember, Grandma loves you" At the end of all that, she started to make her way across the street and toward the side of it with the pretty lake view.

I woke up from that dream around 6:30 and laid in bed trying to make sense of what I just saw. While doing that I heard my mom's muffled crying from the other room. I assumed she was emotional about her state getting worse, but quickly realized something terrible happened once I heard my dad sigh.

Walked over to her room and well, turns out Grandma passed away around 5 that morning.

I'm extremely curious to what this dream could mean, considering the coincidental events during/afterward.

A little about my situation:

I (16F, infp) am not too much of a spiritual believer, but this shook me up a little bit. My family is relatively close in relationship, and for most of my life I'd see my grandparents every few months, and every few weeks more recently due to their health conditions. My grandfather passed close to 3 years ago, and my grandmother yesterday morning. She had strong religious beliefs but rarely talked about them. I haven't been very emotional about my grandmother, I guess I still was/am in complete denial over her being extremely unhealthy and passing.

She just kept telling me she loved me. I wasn’t in her last apartment but maybe somewhere she used to live. She was still deceased in my dream I just went to visit the house but in the house I could hear her telling me she loved me.