oOoOo lucid dreaming. I've been doing that for years. I did many experiments back in the day and I'll write quickly about them.
Right short history.. I suffer from insomnia of hades, when I'm going through a bout of it (usually lasts 3-4 weeks) is when I lucid dream. I tend to do it more in the morning than at night. And I'm almost guaranteed to do it if there's a gently background noise (tv or radio or something)
I found controlling lucid dreams pretty easy, I can change myself, my surroundings, get people to do things the lot. What I can't do is think when I'm dreaming lucidly..
I decided that possibly it'd be an idea to meditate on an idea and even pray while dreaming lucidly. The times I remembered to, I couldn't concentrate enough to hold something in my mind, it'd come and go as fleeting thoughts, which is what dreams are really, since although dreams seem linear when we remember them, truth is they're only a few seconds long and fleet from one thing to another.
Uhh yeah that's about all I have to say hehe