The "it was really just a dream!" plots tend to be rejected by readers, unless they're a skillful and concerted effort to not be The Wizard of Oz -- and that story only seems to be acceptable because it was grandfathered in as a classic. Similar stories seem to do things to make the "dream"-ness more than just a frame to make a fantastic story plausible. Total Recall does this by leaving the question of if the events are real ambiguous, The Matrix does it by making the delusions a character in their own right, etc. This comic pulled it off in part 1 by making the act of waking up a tragedy - and that requires a lot of content to produce. Even then, I wouldn't be surprised if a healthy number of readers stormed off in a huff after that.
Given that you have a quest for self-improvement and about a short story's length of text, I'd avoid that story structure. It takes a lot of space to set things up so that when the dream ends people don't think "Ugh! Another one!" or, if they're feeling comical, "No. But it wasn't a dream -- it was a place. And you -- and you -- and you -- and you were there!"
That said, I'd think there would be some interest in writing ordinary characters in an extraordinary setting. If nothing else, you've a contrast from expectations that requires no obscene explanation. You have a story that takes place in a land o' Fairy Tales and your main characters aren't even a little bit magical. The explanation? Well, they're normal people. (duh!) It's that sort of thing that keeps people interested in work, especially when it avoids the cliche ways to set it up (magic portals, dreams, etc.)
... mostly a postscript here. The serious, serious issues in fanfics are also cliche. Horridly so. Those issues are how people who don't like fanfics make fun of them, and why such writings are almost never accepted by a general audience. I don't mean to scold the genre; I more mean to point at why the things don't get published, except by scammers, and to nudge toward the idea that the original plan was to present this to what sounded like a relatively large audience.
Given that you have a quest for self-improvement and about a short story's length of text, I'd avoid that story structure. It takes a lot of space to set things up so that when the dream ends people don't think "Ugh! Another one!" or, if they're feeling comical, "No. But it wasn't a dream -- it was a place. And you -- and you -- and you -- and you were there!"
That said, I'd think there would be some interest in writing ordinary characters in an extraordinary setting. If nothing else, you've a contrast from expectations that requires no obscene explanation. You have a story that takes place in a land o' Fairy Tales and your main characters aren't even a little bit magical. The explanation? Well, they're normal people. (duh!) It's that sort of thing that keeps people interested in work, especially when it avoids the cliche ways to set it up (magic portals, dreams, etc.)
... mostly a postscript here. The serious, serious issues in fanfics are also cliche. Horridly so. Those issues are how people who don't like fanfics make fun of them, and why such writings are almost never accepted by a general audience. I don't mean to scold the genre; I more mean to point at why the things don't get published, except by scammers, and to nudge toward the idea that the original plan was to present this to what sounded like a relatively large audience.