jupitersterrain four

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some experienced lucid dreamers have learned to remember specific goals 

such as artists looking for inspiration

these eye movements may correspond to the direction the dreamer "looks" at in the dreamscape

trained lucid dreamers to communicate with researchers while dreaming by using eye movement signals

During REM sleep the body paralyzes itself as a protection mechanism to prevent the movements that occur in the dream

the awakened sleeper feels paralyzed. Hypnagogic hallucination may occur in this state, especially auditory ones

rushing or pulsating noises, and brief hypnogogic or hypnopompic imagery. Experiencing sleep paralysis is a necessary part of Wake Initiated Lucid Dream in which dreamers essentially detach their dream body

OBE is an experience that typically involves a sensation of floating outside of one's body

the dreamer will often invent a memory or a story to cover up an incongruous or unrealistic event in the dream. For example, "That man has two heads!" is not usually followed with "I must be dreaming!" but with something like "Yes, I read in the paper about these famous Siamese twins." Other times there will be an explanation that, in the dream, makes sense and seems very logical. However, when the dreamer awakes, he/she will realize that it is rather far-fetched or even completely absurd