Good reply Anthony.
Firstly, I think the nonsense of so called lucid dreaming needs to be discarded. Are you daydreaming, then you are not asleep. Are you asleep, then you are not in control of the dream. It might be new age fancy to think that you are in control of your dreams, but it is a self fulfilling prophecy. You say to yourself “Think of something else” and the dream changes and therefore you think that you have control of your dreams. But this is not true for if you had control to begin with then you would not need to change the dream from one topic to another.
There is no full control of true dreaming, only a false idea of control as your mind gravely attempts to switch from one state to another in response to physical stimuli. You can only seem to control the dream because you may semi-consciously arise to alter a dream at a particular point in time, but that is all. When you feel that you are controlling the entirety of a dream then you are not dreaming but awakening and your thoughts are your own. You must remember that if you video tape yourself sleeping you will only remember one tenth of the time that you are supposedly dreaming and that portion only generally during the time that you are awakening. As you awaken you gain further control of that tail end portion of the dream. Lucid dreaming is a new age fanciful lie and that is the sin that you are committing, that of lying to yourself about the truth in order to feel cool about a new age false fad.