That's very interesting...it's so simple, but I've never tried that before, so I can't tell you. That would be useful though...when you say laws/rules, do you mean like "Any time I dream, I must be lucid" or "I can't have any nightmares" or other things like that? What kind of rules would you make, and would you just speak them and let them "be" or would you write them down in some kind of literal "dream journal"?
I guess you could do that too, but I meant that you could use it to create a game environment where you were limited to doing certain things, achieving certain goals or something. I think what you're saying would work the same way, it's kind of like autosuggestion inside a lucid dream. But what I'm talking about is more just manifestation of an environment that has special restrictions in place to make it more challenging etc.