What are going to die dreams about?

My sister passed away last year after a long battle with alcoholism and drug addiction. This morning I had a dream about her. I want to know what it means.

It was us sitting in this kitchen but it was a kitchen I've never seen before. She was wearing a red t-shirt and jean shorts something she wore often. We were talking about her alcoholism and I was begging her to stop drinking. I kept telling her over and over again I needed her and that my nephews needed her. She then told me that one night when we were drinking together she blacked out but for a second she came to and that we were just dancing and goofing around in her kitchen. She smiled to herself and said "but wasn't that fun?" I told her yeah and then told her if she didn't stop drinking she was going to die soon. She then told me she was sorry but it's so late to change that. I remember we hugged and I woke up.

What do you think this means? Please answer me I've read that sometimes the dead can visit you in your dream was this it?

I had a dream that I was with my boyfriend and a random female character from a show. We were adventure hiking in Madagascar -- seemed we were in the jungle. We came up a steep rock drop and they geared up with ropes and harnesses to lower themselves down it. I was excited, thinking we'd be rock climbing (I like climbing) but when I realized we were just navigating down, I ignored safety and kind of recklessly leapt my way down. I remember doing dangerous balancing acts and the like, thinking "is this a good idea? Am I going to die?".

Then we entered this ancient temple. It was kind of buried in sand, I think, but we found an entrance. Inside there was this cool library that struck me as abandoned. Weird it struck me as abandoned as overall we were in some lost-to-time ancient structure. I remember the other two were wandering the library and this one, out of place book on a pedestal caught my eye. It looked pretty new age and I debated going up to it but instead looked past the library to find the inside of the structure. There were beautiful green, greek-style pillars and it seemed a massive room that went a long way down. I tried to draw the others attention to it, like, "screw the library!". The random woman character at that point was sat on a couch glued to her phone. I remember kind of losing it on her. "Do you see this shit?! This is no time to be absorbed in your stupid phone. There's a whole life to live out here!". Anyway, my boyfriend and I ended up leaving her there and continued on.

As we were exiting the temple out the other side, I presume, there was a desert scene. We came upon some fellow adventure hikers that looked marine-ish. We were all geared up, heavy packs and the like. I don't remember being perturbed by the rough conditions -- I like for things to be difficult. Once in the desert thought I could see, way up on this impossible looking kind of hill in the distance, that there was this huge madagascar-like tree that I was under the impression we were heading towards. Its roots were visible to me somehow, through this narrow kind of hill it stood atop of.

While in the desert we came across the marine-ish characters camping in the distance. They said something like, "this is what it's about. Watching you kids become good at hiking.".

We continued on until we came upon a glacial river. The landscape obviously changed accordingly. At this point I recalled, as my boyfriend tried to show me how to navigate over this thin ice without breaking it, that I'd had this dream before. The last time, I broke the ice and he got mad at me. This time, I guess I succeeded: I got over the thin ice and delved into icy water, but was blown downstream by the current. He had to come after me and catch me with his hand. This is around where the dream ended.

This seems utterly fucking packed with significant symbolism. ?????? Ideas very welcomed.

basically i had sex with a succubus in my dream

when i woke up, it was the scariest and weirdest experience i had ever had
it was so hot yet traumatizing

like my entire body was feeling so ridiculously over-activated

i woke up in sleep paralysis and i started hearing supernatural noises etc and i just shut my eyes and tried to sleep but i couldn't
then all of a sudden for some reason i was in my room but i wasn't lucid, and there was a woman standing next to my bed. very buxom and whatnot
and then she started basically fellating me but i got scared and wanted her to stop and then the dream started getting scary, then she got up in my face and put her tits on my chest

and i started screaming and trying to shove her off me, but she kept moving her body against mine, and then i started cumming (in real life as well as the dream btw) and she bit my shoulder and it hurt so badly and i felt like i was going to die for sure. i felt blood coming out and i was screaming and it was very scary.
then i woke up for real

I had a really weird dream last night that felt so real, but I was also begging myself to just wake up. A lot of it I don’t remember, but I do know we were stuck in night. It was just dark, people were panicking, but the threat was never made clear. I never knew why night just persisted. I took my son with me and was trying to find people I knew. I found my dad and asked what was going on, hoping for some sort of reassurance, but all he answered me with was ‘Looks like I’m going to die’. I don’t remember fearing for myself, but I was extremely sad that my son wasn’t going to get to enjoy a long life. I was also sad I was not going to get to watch him grow up. At one point the night started to lift a little, as if it were dawn, but the panic was still there. The dawn stayed for a really long time, and at that point I woke up and saw the same coloring out my window, making my dream feel even more real. It was not my favorite.

i’m extremely freaked out so if anyone can help me, id appreciate it! (please do sarcastic comments as i’m very scared)

in the morning around like 5am, i woke up from a nightmare & the only thing i remember from it is that it was my boyfriend, yelling in my face, eyes wide open, freaked out saying i was going to die tomorrow. it woke me up but i went to sleep after. ever since this, i cannot get it off my mind. it’s genuinely making me go insane & i’m having so much anxiety over it. on the way home from work, i also saw a crow in an area where i never even see birds to begin with. i don’t know :(. I’m just very nervous now cause it’s really scary for me. Can anyone tell me what may be going on? Your help is greatly appreciated.