At first, there was only scenery without boundary and the view to the ground. The appearance of the floating circular trail gave the space boundary. Then it becomes soft and undulating, one falling end becoming an inseparable structure growing from the ground. Then the loop changes, and the white GRC curtain wall drops from the air to ground, making the whole structure like clouds floating on the base of the landscape. In the final scheme, we get a smooth form composed of free curves, which seems to be unintentional freedom and integration, but in fact, they are all deliberate improvisations.