Various things can happen in your dream that might spur you to consider that you are dreaming.
I’ve never had characters in my dreams tell me I’m dreaming (or maybe I have—who knows? I rarely remember my dreams; but, in any case, to my recollection this has never happened), so I can’t speak to that.
As for green dragons, well, why should that make me conclude that I’m dreaming? If a green dragon flew across the sky while I was awake, I certainly wouldn’t conclude from this that I’m actually dreaming (why should I?).
(As for the rest of your comment—and your post—I may comment later, when (if) I’ve finished reading all of the linked posts, since you do refer to quite a few previous posts in this one, it seems.)
By itself it should not convince you that you’re dreaming. I don’t know if you’ve ever had a lucid dream, but often they are triggered by an oddity that you (for some reason) decide to take seriously in a particular way. A green dragon may prompt you to introspect in that way, but only if you don’t accept the mind’s trick offering. At that point it does become possible to know that you are dreaming.
I’ve never had characters in my dreams tell me I’m dreaming (or maybe I have—who knows? I rarely remember my dreams; but, in any case, to my recollection this has never happened), so I can’t speak to that.
As for green dragons, well, why should that make me conclude that I’m dreaming? If a green dragon flew across the sky while I was awake, I certainly wouldn’t conclude from this that I’m actually dreaming (why should I?).
(As for the rest of your comment—and your post—I may comment later, when (if) I’ve finished reading all of the linked posts, since you do refer to quite a few previous posts in this one, it seems.)
By itself it should not convince you that you’re dreaming. I don’t know if you’ve ever had a lucid dream, but often they are triggered by an oddity that you (for some reason) decide to take seriously in a particular way. A green dragon may prompt you to introspect in that way, but only if you don’t accept the mind’s trick offering. At that point it does become possible to know that you are dreaming.