"I think that was about the first time when the interior space began to come through as the reality of the building, when you sat in the Temple, you were silting under a big concrete slab that let your eyes go out into the clouds on four sides.

Then there were no walls with holes in them. You will notice that features were arranged against that interior space allowing a sense of it to come to the beholder wherever he happened to be. And I have been working on that thesis, for a long time because it was dawning on me that when I built that building that the reality of the building did not consist in the walls and in the roof, but in this space within to be lived in."... Frank Lloyd Wright