The interior of Salisbury Cathedral is illuminated by trails of candles carried by choristers during the annual 'darkness to light' advent procession on Nov. 28, in Salisbury, England. This year's service - which begins with the cathedral in total darkness and silence before the Advent Candle is lit at the West End - features Bruce Munro's fibre optic 'Light Shower' installation high in the Spire Crossing made with 2,000 points of light. The annual advent service is a mix of music and readings during which two great processions move around the different spaces in the building which is, by the end, illuminated by almost 1300 candles.