Lucid Dreaming is the ability to consciously observe and/or control your dreams. In other words, your dream becomes as authentic as real life, and in some ways it becomes better than real life because you are not ruled by the laws of nature and physics.
Within a normal dream your self-awareness is shut down. However, when you’re lucid dreaming your consciousness effectively awakens during sleep and you therefore become aware of the fact that you are dreaming.
Lucid dreaming is a powerful process because it allows you to potentially solve problems, increase creativity, face your fears, improve self-confidence, practice new skills, develop your sense of self, and even allows you to explore the vastness of your unconscious mind.
- Reference: What is Lucid Dreaming