A lucid dream is a type of dream where the dreamer becomes aware that they are dreaming. This awareness allows the individual to have some control over their actions and the dream environment. Lucid dreaming can occur spontaneously or can be induced through various techniques. Many people experience lucid dreams during the REM (Rapid Eye Movement) stage of sleep, which is when most vivid dreaming occurs. Some techniques to achieve lucidity include reality checks, keeping a dream journal, and practicing mindfulness. These methods can help individuals recognize when they are dreaming and enhance their dream experiences.