While knowing what it actually is!

I had this awesome dream. Like a movie. London had been bombed (nuclear weapons ) and we would all hide down in the sewers and underground metro. Totally awesome. So, things happen, and I want to help some children, when I suddenly realise that it's all a dream (RC's are really helpful). I actually want to go on with the dream, 'cos it's pretty exciting. I knew that nothing could hurt me (seconds ago I was almost peeing my pants).
I remember that I should be able to do everything I want.
I want to be invisible. Im like, pointing at myself (blurry hands yay) and saying "invisible!" some times. I really believe that Im invisble. I can still see myself, but the others can't. Sadly I soon after lost my lucity. I ended up dreaming the dream till the end. It was really a whole new level of.. power

It was awesome. Now I know that I can actually do it.