Wait.. I知 confused. What is the hard to believe part of that dream?

The fact that the dream knew about itself? Because that happens all the time. Its just like if your in a dream and see a person breathing fire and you stop to ask him "Woah man, how are you doing that" and he replies "Because your totally dreaming man!" Things like this happens all the time. Yours just took the form of a narrator.

Or is the unbelievable portion the dreaming in color part? Because correct me if I知 wrong but I thought everyone dreamt in color? I have never heard of a grayscale dream unless you were dreaming of a 50s noire flick lol
I dream in color every night