Switching Dreams and Reality

I've been wondering recently whether you could train yourself so that your dreams become reality and vice versa (sp?). I figure you would have to start out small by remembering and recognizing dreams, then moving on to lucid dreams (if you don't have them naturally), and then somehow, within your dreams, telling yourself that it is your real life. Is this possible? If so, would one be locked into it?

I have had "lucid" dreams and I feel everything going on (pain, warmth, etc). I have often wondered if I died in my dream (by being stabbed, shot, or anything else gruesome) would I feel it like it were really happening?? Scary to think about...

I get regular dreams where i am the victim of violent attacks, shot, stabbed etc. All that happens is i fall and can feel myself going unconsous and then another totally different dream starts. Dying in my dream dosent kill me in real life, (obiviously) and i feel nothing phyisically on the part of the body where ive been struck.

Excuse my spelling, bit tired, brain shutting down.