A lucid dream is a dream in which someone is aware that he is dreaming. It is a scientifically studied and recognized state of dreaming.
An individual experiencing lucid dreaming can still retain full awareness while he is asleep. He can control the dream, consciously explore the dream and maintain the ability to reason. A lucid dreamer can control what the dream is about and control his actions inside the dream, such as flying like a superhero or exploring an imaginary land. Scientific studies have also shown that lucid dreaming can be a learned skill, and cognitive techniques can help an individual reach a state of lucid dreams.