So i though why aren't we always lucid? Why is it unnatural to be lucid especially in dreams? I think the explanation is that this lucid state i a newer thing in our brain. It's like an upgrade. Our animal ancestors didnt have this brain function so there was no lucid state for them. When this upgrade happened, it wasnt for 100% time... We are not lucid all the time and i bet some people never been lucid at all. So most of the time we are like our mammals ancestors... And i think that is the reason why we have base dreaming non lucid dreams. We have to turn this function on either awake or asleep.