Think of it this way. How you interpret DGs is up to you. I believe it is your subconscious/anima/. I think of it as forming an entity because it's really hard to talk to your subconscious if you just let it create things for you. Making a DG just makes the process easier, in my opinion. It's not absolute, it's just something I feel is tangible. The DG can link you to thoughts within your unconscious, that's what I believe. People think it's hocus pocus, and they have every right to think so. If you want to get something out of your dreams, you have to find what you feel is the best way to do so.
We all have faith in something, even if it's to not have faith in anything at all. It's just interesting to me to see how your subconscious can create an entity for you to talk with so that the thoughts that it picks up everyday without your awareness can be manifest to you. You can think of the DG as someone on a higher plane of existence, or you can think of them as a part of yourself. You can believe that they are just there to help you for a specific cause, and should you have a challenge ahead of you, you can summon them because you feel they are the epitome of the qualities necessary to solve a problem. Sure that's making the problem-solving theory apparent, and I'm just babbling on and on and on...
Lucid dreaming is being able to do whatever you want to do. You can skew your way of thinking to try and understand genuine perspectives to help you learn an abstract way of thinking. You can choose to have a narrow-minded mentality to see how it affects the way you think, you can choose to think anything while lucid dreaming.
Anything is possible, just because someone puts faith in a DG to obtain unconditional love, hatred, whatever, even if it is a self-fulfilling prophecy, you'll have to if you want a logical way of understanding yourself. If you just lucid dream and think that a DG is a DC with more awareness, you're putting a belief system that they are for that purpose.
We either conform to our schemata and fit things that are new to justify our way of thinking, or we destroy old ones to create new ones to conform what is being presented to us.
This is cliche, but think of the Matrix and the spoon scene . If you lucid dream, you see the spoon, and believe it's a spoon because you've been so accustomed that the object is a spoon. But there is no spoon.
What am I trying to get out of this? Probably nothing.
We act in the moment most of the time, and then justify the reasons why we did so later. Feelings of brief spontaneity going towards a fading reprieve. We put too much emphasis on theories, terms, etc...we're thinking too much. It makes lucid dreaming less fun. People come up with new ideas to induce lucid dreaming when it's all just a placebo that gets you excited, and when it works, you become so delighted of this.
Then when it doesn't work, you start to question if it was really effective at all, and move on to another technique or just practice an old technique. Then you find that it becomes harder because you were so used to being conformed to one technique, and because you feel that you can't go back to the other, you make it harder to have a lucid dream.
How does that way of thinking apply to DG? If you try think too much on whether or not it is a self-fulfilling prophecy, then most likely it will because your mind is already building a schema to conform to your schemata that it is. So when you see someone who contradicts this way of thinking, you may feel a bit disappointed, which is the perfect example of confirmation bias. To indulge in ideals that agree to your preexisting thoughts. We're humans, we're hedonistic, you can deny it, but we all have desires.
You could try to attempt to lucid dreaming to fulfill these desires, and we want to believe that it will make us a better person if we use LD as an infinite void to fill the gap of our hedonism. Or it can be something else.
We're all different, sometimes it becomes disgusting to us when we see a person use LDing to put faith in something that isn't real to us. It could be real to them, anything is possible in lucid dreaming, yet we all still try to find some way to verify it to logical means to make LDing more complicated.
Just go with the moments of spontaneity when you have a lucid dream, allow yourself to believe that a DG is someone you put faith into, allow yourself to not believe that they are not a medium to put faith into. There's so many thoughts that hinder the subjective truths behind lucid dreaming. Everyone argues to see that their preexisting schemata is absolute, or at least mostly right.
I'm not saying that you're arguing, but I'm just bringing it up because I see that people who question on these things seek to validate their way of thinking, and there's nothing wrong with that. My belief is that we shouldn't think too much on that person's belief and focus more on how ours is made.
I think of lucid dreaming as a path of self-enlightenment, seeing so many perspectives that were repressed, and they can be unlocked if you believe it can be.
If you want to see if it's a self-fulfilling prophecy, then you should experiment with it for yourself to get a better understanding. See if it fits with your schemata, find out how your schemata prevents you from accepting it or denying it, and if you like how the belief makes you feel, then create a new schemata to conform to it. I believe it's about conformity and rejection. Letting yourself go but also allowing yourself to hold on to a belief.
Free your mind, in my opinion

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