Need help with this one... Very odd ending

this is long but if you have the patience and wisdom to help interpret this please do if not feel free to skip.

I didn't know what lucid dreaming was until a 5 or 6 years ago, though id been doing it my whole life. I started recognizing and pulling my self out of nightmares as a kid, As i got older i started recognizing i was in a dream and trying to do whatever i wanted, they usually fell apart rapidly. Now at 43 My dreaming is almost another life, epic dramas, adventures, traveling, hearing symphonies id never heard before, going places I've never been, all in what seems full consciousness. I often wake up either mentally or physically exhausted. I have explicit dream recall, full color and details. I tell my wife about my dreams and shes shocked at how detailed and epic they are and how i can change them. I have no formal techniques 90% of the time once I'm dreaming i already know I'm in it, nowadays i just go with it and let it happen better or worse unless it gets really hairy and i bail out or change it. Recently though something really strange happened that I've been dying to share cause I'm really confused by it, and it was so different than any other lucid dream I've ever had and i need help deciphering it.

I was in a dream 2 weeks ago where i was talking to 2 friends, one had recently died (hadn't seen him in 20 years, but found out he was dead a few weeks ago in real life) the other was not. I realized in the dream that one of them was dead and i couldn't be in reality so i must be dreaming. Realizing this I went outside where another old friend of mine comes up to me and says hey man whats up. I said Gregg, when's your birthday? I personally did not know it but i figured if the person i was talking to was real, he would know their own B day.( i know now these are called reality checks) he of course did not know upon which i told him we were in a dream. this dream character got really angry and stormed off pissed i told him he wasn't real. Skipping the rest of that scene i had a little time to myself and being i was at my house i grew up in i decided to walk around. by now the characters had dissipated angry as well and it was just me. I walk into our shed, and my brother is in there and another man id never seen before. Happy to see my brother in the dream i hoped he was in a co joining dream, I said hey were in a dream, no response just sitting there. I said " we are, look my body is right there in the bed...nothing..to prove it to him i said look i can change that guys face, which i did, it morphed and warped. Still no response. I asked him when his Birthday was (which i know), and he just sat there. I said you aren't real either, this is where things got weird. he got up and seemed scared, his "character" looked like it was falling apart, he left through the wall, and everything in the dream just got bland and nondescript (all very Matrix like). I created a door in the shed and walked through it to a big grassy field with a huge wall of bushes in front of me about 50 yards away. When i got to the bushes there was a little dog (Pomeranian) that saw me and ran through the bushes. I pushed my way through to the other side and was on white sand the dog now 20 yards away, the dog growls as i walk towards it, and i know its going to bite me. I decide to let it to see how much pain i could feel in a dream. the dog jumps and i let it bite into and hang from my right arm. the pain was low and dull but got more intense. i reached a point where I didn't like it anymore and shook the dog off. The dog lands on the ground and looks up at me and says "get out of here". Very forcefully. The dream fell apart right there. For the first time, because i was so "conscious" in the dream, i had a very hard time getting a grip on being awake.

I am wondering now, if like my sister thinks(who also lucid dreams often), that i violated some dream rules or disrupted the "dream center", or if i was getting close to my subconscious and got booted out. I don't know, I'm a novice at all the terminology and how it works.

I don't know if this is much help but I did get some thoughts about your dream

I've read and discussed before about dreams that were hostile towards dreamer. Like there were places in (personal or other) dreaming that are not permitted to access. In Inception movie they descriped this kind of dreaming enviroment where it's not safe to reveal that you are a dreamer and other are DCs.

I've got one experience where I was kind of an intruder in dream. It was one of my first lucid dreams. I realiced I was dreaming and I tried to walk through wall. It worked and I reached the other side. There was completly different scene going on. It was like I had been walking around Hollywood film set and accidently popped in middle of another movie shoot. I arrived in middle of the situation and was complete outsider to situation. People there started noticing that I was outsider and started to act strange towards me. I did some magic to handle the situation and leave the place but also semilost the lucidity.

I also remember this one dream I've read about where somekind of dream guardians told (lucid) dreamer that he/she had travelled where he/she shouldn't.

Maybe these things represent some kind of personal subconscious boundaries that you have put up. Or maybe there are places that are governed by some entities that don't like lucid inrtuders. Or maybe some other exlanations.

Dream that ends or collapses to some kind of message is also interesting thing. One of my most shocking dreams ended up in error message and then I woke up. In this dream (nonlucid but very magical) I was part of group of reality rebels. We were not rebelling against reality but instead rebelling for new reality. There were many turns in the dream and eventualy time and archetypical stories started to collapse into one thing or moment. After our last effort the dream collapsed into error message where I woke up. The message were: "Funny thing just happened. There is no fantasy that history has forwarned us. You have to constract every parsec of story yourself."

I was feeling quite strange and looking world with strange eyes the next day. Strange thing was that message was in English and I'm not native English speaking person.

Hi. I think its a misunderstanding to treat things in dreams as if they are not at all real, or to assume that everything we experience in dreams is confined within our own pretend world. The things we form images of in dreams may not amount to much, and may not be what we think they are, but they are reflections of something. I say this based in part on having had a very large number of accurate premonitions in dreams, about events which I had no other prior knowledge of. I don't know how most of this stuff works, but there's definitely something going on that has some kind of objective reality, outside of what is explained by any of our physical and psychological theories.

If it were me, I would respect the dog's space. If he encroached into my space uninvited, then I would ask him what he wants, and boot him out if I didn't like what he's up to. But I don't think its good to just go rampaging around in other people's countries or mental spaces uninvited, as if everything we set our eyes on belongs to us.