I, too, feel compelled to respond... I'm a BS. I don't often remember my dreams, but had a vivid one the other morning that really bothered me and I couldn't put my finger on it until I read your post.
We have a ravine at the back of our yard. The trees block the view of the houses behind us. I dreamt that I woke up and all the trees had been removed by our neighbors and a nice new line of flowers planted instead.
Why did this bother me so much? I just realized maybe it's a metaphor for my life. How could all that "work" get done without me noticing? The new plantings were nice, but I preferred the tree line and my privacy. Why did the neighbors do this without even consulting me, seeing as it would affect my family (and our view) for years?
Ahhh, I totally get it now. Thanks for the post. I couldn't figure out why I would have such a wierd silly dream and why it bothered me so much. Now I do.
To answer your question, I have no idea how anyone can get control of their dreams. I guess just trying to fix things in real life, so that they don't need to bother us in our dreams...