What is your brain experiencing when lucid dreaming ?

When you are experiencing lucid dreaming what is your brain going through, is it having a hard time or enjoying and relaxing the calm state that you are in ?  Truth is the part of your brain when not lucid dreaming is not at work this is also the part where it deals with logic, but when you are lucid dreaming it is turned on and working because the person who is dreaming is aware that he or she is dreaming. This part of your brain is called the lateral prefrontal cortex as you lucid dream it works as you dream making it hard to keep it up and running while dreaming putting more stress on your brain. This does not harm the brain though it just makes it work harder not everyone can do this to because it takes a tremendous amount of concentration.