Also my sis is criticizing the whole lucid dreaming thing by saying that since dreaming is subconscious if you become lucid and start controlling it you are imagining it instead of dreaming it[/b]
Dreaming sort of is imagining it, a very strong vivid form of imagination, but its still very much dreaming. And if she still doesnt believe you tell her she's doubting something that has scientific research etc, and has a whole institute devoted to it, (www.lucidity.com).