I've been sporadically trying to induce certain themes and locations in my dreams. But what about stopping certain things from appearing?
It's frustrating for I still don't have the lucid abillities to controle everything. Are there ways, non-lucid to keep certain thoughts out of your dreamworld?

I've tried to focus even more on my dream incubation in hopes of it taking up all of my "dreamspace" if you will. But last night it all went downhill again.