Lucid dreams meaning: If you have a lucid dream

If you have a lucid dream, you're asleep but aware that you're dreaming. Researchers don't understand the cause of these vivid dreams but are trying to learn more. Lucid dreaming is when you consciously realize you’re inside a dream. This type of dreaming is most common during rapid eye movement (REM) sleep, when your brain experiences increased activity during a deep sleep. Lucid dreams occur when you have an awareness of dreaming while still in a dream. Learn more about this phenomenon, plus how you can learn to lucid dream. Lucid dreams occur when the sleeper is aware that they are in a dream and can exercise some control over their environment. Various approaches can stimulate lucid dreaming and help train a person to lucid dream. Frequent lucid dreams might decrease sleep quality or affect one’s mental health.