Lucid Dream Overview Lucid dreaming happens when you’re aware that you’re dreaming. You’re able to recognize your thoughts and emotions as the dream happens. Sometimes, you can control the lucid dream. You may be able to change the people, environment, or storyline. This type of dream of control could potentially reduce nightmares and anxiety. Keep reading to learn more about lucid dreaming — what it is, when it occurs, and what you can do to experience it. When lucid dreaming occurs When you sleep, your brain cycles through rapid eye movement (REM) sleep and non-REM sleep. Non-REM sleep includes three separate stages. During non-REM, your brain waves, heartbeat, and eye movements gradually slow down. In REM sleep, your brain is extremely active. Your heart rate and eye movements also increase. Lucid dreaming, like most dreams, usually happens during REM sleep. In a lucid dream, you know that you’re dreaming. You’re aware of your awarene...