The limits of lucid dreaming span far beyond conscious imagination. Things that you've seen in your life time that you've long since consciously 'forgotten' are still shelved in the back of your subconscious. Everything in life that you've taken in through your senses, sights, sounds, smells, tastes, etc, that you've come in contact with you, can be brought back to your in dreams. It is for this reason that many people use lucid dreaming as a field of self improvement, a training facility for the mind utilized before the hours of going to sleep and waking. One of the most exhilirating (sp) features of lucid dreaming is Hightened Senses in the dreamworld. Once you are conscious that you are dreaming, you tend to Sense everything a little more clearer. Its like adjusting the resolution on a computer monitor and clearing the audio of any distortion, the whole world becomes more clear and your experience gets just that much deeper.