a series of light volume corresponds to a part of the catholic worship service....such as the south facing light corresponds the the procession, a fundamental part of the mass. the north light corresponds to the chapel of the blessed sacrament and to the mission of outreach to the community. the concept of different lights is further developed in the dialectic combination of a pure colored lens and a field of reflected color.
a baffle (usually a static device that regulates the flow of a fluid or light .... yeah i had to look it up!) is constructed opposite the large window of each "bottle of light." each of the baffles is back painted in a bright color; only the reflected color can be seen from within the chapel. this colored light pulses with life when a cloud passes over the sun. each bottle combines the reflected color with a colored lens of the complementary color.
at night, which is the time of gatherings for mass in this chapel, the light shines in all directions out across the campus like colored beacons. on occasion, for those in vigilant prayer, a light will shine throughout the night.
i have such a fascination for churches....old and new!