It is completely black within the cavern. At intervals, to your right or left, ahead or behind, spaces are lit where something may be seen; it should remind you of a carnival sideshow ride, a house of mechanical horrors through which you travel twisting corridors on rails, lurching in your little car, surrounded by noises of old unseen machinery, and suddenly entering into tableau vivant, vignettes revealed in vivid or moody spotlight, as the case may be, intended to shock and amaze or to affect with heartfelt distress.

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Music excerpt is Hovhaness “Fra Angelico.”