Doug Perrine / Spermaceti candles made from Sperm whale wax, Whaler's village museum, Hawaii

TJ Rich / Gemstone miner preparing to descend mine shaft with only candles for light and no safety equipment. Ratnapura, Sri Lanka, December 2012.

Juan Carlos Munoz / Buddhists lighting candles outside, Yuantong Buddhist Temple, Kunming, Yunnan, China, April 2016.

Enrique Lopez-Tapia / Devout Christian in traditional robess lighting candle in front of Bet Danaghel (part of the northwestern group of churches in Lalibela). UNESCO World Heritage Site. Lalibela. Ethiopia, December 2014.

Bryan and Cherry Alexander / Nadia Takui, a Chukchi girl, dressed in a traditional reindeer skin Kerker, (knee length coverall) sitting at the edge of the polog (sleeping area) in a Yaranga (tent) at a reindeer herders' summer ca...

Bryan and Cherry Alexander / Vera Rakhtuvia, a Chukchi woman, relaxes by candlelight with her granddaughter, Susha, in the polog (sleeping area) inside the family's Yaranga (tent) at their summer camp. Iultinsky District, Chukotk...

Jeff Wilson / People lighting candles inside Mosque at night, Lahore, Pakistan, 2006

Jeff Wilson / People lighting candles inside Mosque at night, Lahore, Pakistan, 2006

Wild Wonders of Europe / Munier / Photographer, Vincent Munier, looking through window, silhoutted at night, Forollhogna National Park, Norway, September 2008

Bruno D'Amicis / Ethiopian women preparing coffee (Coffea arabica) according to traditional ceremony. After roasting the coffee, this is pounded and boiled in terracotta pitcher, Bonga, Kaffa Zone, Southern Ethiopia...

Bernard Castelein / Monk inside the butter lamp room in the Enchey Monastery, Gangtok, Sikkim, India October 2007

Bernard Castelein / Lamps burning inside the butterlamp room in the Enchey Monastery, Gangtok, Sikkim, India