Lucid Sleep

One of his students was Abbe Faria, who wrote a book in 1819 called “On the Cause of Lucid Sleep”. This was about the concept that Mesmerism is a mental process of the subject, and he explained it as the result of a combination of “visual fixation” and “mental fatigue”. A lucid dream is the sort of dream where the dreamer becomes aware that they are dreaming. During this type of dream, the dreamer may have some control over the dream characters, the narrative, as well as the environment.