A lucid dream occurs when you realize that you are dreaming. With practice, you can induce lucid dreams, (LDs), and maintain your lucidity for extended periods. Anything you can do while awake you can do in a lucid dream.
They hold up a magic mirror in which we can see ourselves as we truly are. They serve as a voice of conscience. They preview challenges and opportunities that lie in our future. Sleep dreams show us what is going on inside the body, diagnose developing complaints before medical symptoms present themselves, and show us what the body needs to stay well.