I like to compare the discovery and exploration of the dream reality with the discovery and exploration of the United states through Columbus. A new land gets investiged and travelled by more and more people.
And not only that: for me it is a kind of change of the view on the world. The earth is not flat anymore, but round, and the heliocentric system establishs itself: not the sun circulates around the earth, but THE OTHER WAY AROUND: the earth circulates around the sun.
Although you can ask THE OTHER WAY AROUND: not, what does the lucid dream gives to the waking reality, but, what does the waking reality gives the lucid dream? You can shift your focus, or the center of the world view. That not the dream reality makes a small part of the waking reality, but the other way around, that the .. (go on reading here).