This is how I lucid dream. It's very very simple but definitely not something that translates into language.

If anyone is into law of correspondence/law of attraction, then it might be easier to say you must vibrate as one would if you were a natural lucid dreamer. You change yr identity and alter yr vibration/energy field so yr viewpoint becomes that of a natural lucid dreamer/lucid dream master.

Its funny how it really is as easy as saying "just be a lucid dream master", but if you don't understand the intent part ... you have no hope to understand.