According to Wikipedia, a lucid dream is;

" A lucid dream, also known as conscious dream, is a dream in which the sleeper is aware that they are dreaming. When the dreamer is lucid, they can actively participate in and often manipulate the imaginary experiences in the dream environment. Lucid dreams can be extremely real and vivid depending on a person's level of self-awareness during the lucid dream. "

With enough practice anyone can have the ability to control their dreams. Of course, first you'll need to experience your first lucid dream to start training.

That's where Am-I-Dreaming.com comes into play. By testing yourself as often as possible, your brain will be hard coded to think about if you're dreaming or not. Hopefully within a couple of weeks, you'll visit our website in your dreams and actually realize that you are dreaming.

From there...it's all up to you!