Hi, Kraven! Since you're looking for opinions on a personal matter rather than a generalized discussion, I'm going to move this on over to Life Issues. :)

Now as for your dream, it's very difficult to say what it could mean without having more details and knowing you better, and I don't really know that much about dreams. It's possible that it's an expression of your desire to explore, have adventures, have an exciting life. It could also be that you just pay a lot of thought to Japan. Dreams tend to recycle our thoughts and feelings, so sometimes they're a reflection of what you're feeling, but other times they're just kind of a mish-mash of what went on in your head that day.

I've never had multiple dreams that were exactly the same (only dreams on similar subjects, with similar plots, etc.), and I don't really know if they're that much different than a standard dream. Like alexandrakitty suggested, it might be best to think about how you feel in the dream, what it means to you, and see how it could be a representation of something. There isn't really many one-size-fits-all dream interpretations, so really it's up to you to figure out what it could mean about your life and thoughts. After all, you know them best! :)