Dream Of Alternate Timeline Death Experiences

In the dream there was life as it was, and then an alternate timeline named 'death' in the dream. I was content with life as it was, but then I remembered that I when had this dream before, and I accidentally found my way to the death timeline. I decided to try and remember how I did it. I basically held my breath in the bathtub, and went under the water. There I found myself in the other timeline. This timeline had clear and defined 'stages' to 'life', as I witnessed in someone else for the first time. First, when you're about 30 years old, you find the love of your life and your sex drive increases tremendously. Secondly, sometime a long the way, your head gets chopped clean off, but you keep living with a neck stump. Third and fourth are hazy to remember, but I think it's something about trying your best to improve your wrongdoings and/or improve your physical appearance. Finally, there's death, and here it's usually gruesome and unforgiving, matters the life you've lived. I watched as my 'partner', that I didn't know well, lived a full life, and had a death ceremony. The death ceremony basically includes all family and friends being at the home when death decided to come, and take their life. This includes fire, liquidation, compression to death, etc. As soon as my partner died, I woke up back into my 'normal' life universe. My mom somehow found out about my 'adventure' as she told me to not spend too long in the other universe, as I may not find be able to find my way back. Or worse, I may be unable to distinguish between the realities. We had a family gathering, and my rich uncle from another country (who doesn't exist in real life) is apparently the head of the family. He found out that I'm going between dimensions and cruelly ordered me to stay in there for an indefinite amount of time. Everyone tried to half-ass revolt but wasn't able to change his mind. At the end, I stood up, and speed-walked towards him and started cursing, saying that I will end his life if I did so. As soon as I reached him, his living figure was replaced by a bottle with ashes inside. I blinked and backed away as I saw my mom in awe try to move her way between him and me. As soon as I stepped back, he turned normal again, looking like a human. It seems the closer I got to him in that moment, the more his life fast forwarded in my eyes. I took a few other steps back and he became back to normal again, even though I still had hate and fury in my eyes. He still had his smug grin, but had a touch of fear in his eyes. He ordered everyone to step away from me, and I fled to the bathroom. As soon as I opened the bathroom door, I was grabbed by my hair, and thrown into the bathroom. I seemed to have been thrown into the other dimension again by someone else. I didn't recognize this person, nor where I was. But the uncle seemed to have appeared behind me near the door. Though I was upset, he cooled me down and asked for a chat. I agreed, and he walked with me, and told the other guy I would only be a minute. He said he knew about how dangerous this place was, and how I was bound not to listen, because he knew how curious my soul was. He said that even though I may feel somewhat safe here, that I shouldn't trust the feeling. And the more that I 'experience' this dimension, the worse I would be able to tell, in the future, which world I was actually in, and that they may fuse together indefinitely, and I will go mad. Of course I heeded this information, but it wasn't enough to stop me unfortunately. I visited this dimension enough that I wasn't able to, nor did I have the will to, find my way back to my 'normal' dimension. I lived in the 'death' dimension for years. I saw my grandma (who died in real life in 2018 from multiple sclerosis) die, again, and I was sad for how much pain she probably was in, even though I believed she didn't deserve it. I saw multiple 'partners' pass before I even knew their names. And at the last stretch, I found myself with a 'friend' at work, who has brain damage. We barely talk much, but we still talk. We found ourselves trying to get out of this place, when a correctional officer stopped her. She pleaded that they had the wrong person, and screamed that she was with me, but I couldn't get my mouth to say that I was with her, nor were they listening. I was desperately trying to find the door that I came in from so many years ago, while she's inevitably distracting the officers. At the end I feel bad I was using her for bait, and it made my heart ache, but it was the only thing I could do so that they weren't on my tail too. At least I was better at hiding, I said to myself. -- Many times in the dream, I don't remember exactly where, there were sex scenes with these 'partners'. Headless or not. Also there was a time that the death ceremony was happening in my grandparents house for my grandma, and I was trying to park my car in the back where it wouldn't catch fire, as there was an eternal fire in the backyard.