Design team chose to use an surprising method called the "virtual space". The whole ceiling is made of stainless steel with the surface of mirror. The images in the mirror extend the space in an endless way and break away from the shackles of the building structure, letting the space drift away in a dynamic illusion, and project the rhythm of light and shadow.The image of "circle" is still the measurement scale of space. The semicircle art installation embedded in the stainless steel ceiling is transformed into a whole circle of different sizes and directions through the projection, creating a light floating feeling.