What are seeing a dead friend dreams about?

He died by suicide 2 months ago. He hanged himself, and I've dreamt about him twice now. The first one was just hanging out with him. We smoked cigarettes together, I said to him that I miss you all the time.

The second dream was literally a scenario in which he lied there dead. His neck tied with a rope. Later in the same dream, I saw him and I hanging out again, and he was carrying out some sort of a survey on suicide and people who have committed suicide.

I am just missing him I guess.. but the last dream kinda shook me, seeing his body hanging and stuff.. I miss him so much.

I dreamed of a world where corona virus spread far and wide. A great many people died. Latter any one who had the virus and recovered was forced to wear a collar. People with collars were treated as lower class. There was many jobs they could not take and many things they where not allowed to do. They could not travel or own a car. Years past and technology grew. We manged to slow down global warming. Then one day beams of light rained down form the sky killing any one with a collar. A few others and myself survived by hiding in graves. It was shortly after we each developed simple super powers. It also slowed down are aging. We wear hunted by the government any one found was brought to a lab where they were experimented on till they died. I was good hiding and my super power was a kind of glamour to get people to do as i pleased. Each of my friends died one at a time though untill there was only two of us left. The world had vastly changed. Technology did everything for humans. People no longer needed to make choices the computers made them for us. Every thing was decided by robots for humans form what to eat each day to what to wear. I watched as humans devolved into cogs of a larger machine. If you did not fallow what the robots told you to do you face fines or imprisonment. Critical thinkers grew old and died out. We had held off global warming at the cost of free agency. So i implanted a virus in the main frame making all the computers go haywire and destroy them selves. My throat got slit by one of the nearest robots. Then i woke up.
( try to summarise as best i could was a very long dream i left out some details. )

Something really trippy happened to me, I'm still shaking a little because of it, yesterday, I had a very big fight with my family all fo them because of something that wasn't my fault and I spent the night crying in my room (mind you we are in a vacation) I was always the black sheep of my family and I don't know what happened to me, when I was very young my mom would tell me that I was the happiest kid ever and anyone who looks at me gets positive energy but now she calls me depressed and I overheard her one day say she prefers my brother over me to my aunt on the phone anyways this was a little backstory.

Then as mentioned I had a very rough fight with them that I slept crying and that was when I felt weird I was in my room and when I woke up I was alone it felt weird but after I left my room I find myself in a room with two strange looking people I couldn't see their faces but they looked very weird (not human) and I saw a wall behind them I saw a hand with light motioning me to get closer so I got closer and everything went blank then I woke by the same two strange creatures, one of them was writing something and other told me to jump in some sort of portal(?) the creature told me in a sad voice that I sold my soul to the devil and accepted his offer I was confused because I'm very religious (well not very but I'm definitely religious) and I had never ever contacted souls or demons or anything after that I was shaking very badly and I begged them to let me go back to my body and repent only for an hour I was crying badly they replied saying that I sadly can't at this point I was shaking until I jumped in the portal, I found myself in a stairway with a little girl who looked nice, the stairway had a bunch of words I couldn't read she was crying and she asked about her mom I took her hand and we walked up the stairway and to my very big surprise I found my old best friend who died of cancer (which played a big role in my "depressed" self nowadays)
I hugged her and I could see her talking while glowing I couldn't hear anything until I felt a hand whisking me away I look back and I see the most terrifying demon I screamed and I was shaking but luckily I woke up after things went black for a while, I pinched myself and I was actually shaking a little, but I was glad I was still in my body, I forgot to mention a part before the angels told me to get in the portal I could see my parents and brother underneath me spending time in a restaurant happily and I saw myself dead in my room in the same position I slept

I don't know if it's a sign or not but I never want to go there again

There was a friend reunion. I came late and sat down. In a chair across from me was Jeremy. He was talking about something. Then when I realized that Holy Shit, that's Jeremy, He stopped talking and looked at me. All of his hair was back, and he looked like he was 20 again. I kept looking around and then back and he was still there looking at me. No one else could see him. People could tell I was looking at something and started to joke. So, I asked him in my head. Are you alright? Are WE going to be alright? He smiled at me and nodded. I covered one eye to look at him to see if he was there, and his eyes turned brilliant baby blue. I covered the other eye to look at him and his eyes turned into windows to space. I could see stars and then earth. Then all of a sudden he was gone. Then it was time for dinner. I got up grabbed my plate and sat down next to Aaron. On my plate was a yellow book. He asked me what book it was and I said I didn't know. Then he asked my what I was doing with a giant glass of milk. I tried to drink it and gagged. Then I woke up.

In my dream, I was visiting a friend. In real life, his partner (also a friend) died this year. In the dream she was still dead, in the dream I went to visit him to pay my respects. There was a long mirror on the floor in the kitchen, when I walked towards it I could see her in there. She was chatting and talking to people I couldn't see. When I saw this I turned around to find her and she wasn't there but no matter how much I looked in the mirror I could see her talking to people.