The principal theme of the architecture is the alternation of light and shade. The space between the glass panes of the windows has been filled with the myriad fragments of green bottles. Daylight shining through these coloured panes gives a calm, greenish-yellow luminosity, creating an agreeable atmosphere conducive to meditation.
Seen from outside, the windows present different aspects depending on weather, the position of the sun and the angle of view. Sometimes they are darkened, while at other times they present a crystal-like appearance or mirror the surrounding area.
At nightfall the cube’s light inverses. Its interior LED illumination allows the cube to gleam from the inside — giving back day for night.