By definition, lucid dreaming refers to any occasion when a sleeping person is aware that they are dreaming. But, it's also used to describe the idea of being able to control those dreams. Think:
Inception. Today, lucid dreaming has evolved into an industry worthy of a discussion.
Allan Hobson, a neuroscientist at Harvard Medical School, puts it rather simply:
We don't really know if there are real psychological advantages, but I can ...