"Teyla told the Athosian children that lighting a candle would help protect them."
Elizabeth Weir[src]

A candle is a solid block of fuel (commonly wax) and an embedded wick, which is lit to provide light, and sometimes heat. Many cultures across the Milky Way, Pegasus and Ori galaxies use candles to light their homes as well as a kind of mood setters for things such as meditation.

Teal'c often used candles while in Kelno'reem. (SG1: "The Enemy Within", "Paradise Lost")

The Athosians lit candles in belief that it would protect them from the Shadow creature. (SGA: "Hide and Seek")

Lucius Lavin gave a candle to Dr. Elizabeth Weir, which was made from the congealed fat of an animal he claimed to have killed. (SGA: "Irresistible")

Teyla Emmagan and Ronon Dex used candles while meditating and Dr. Rodney McKay also used candles when trying to achieve Ascension. (SGA: "Echoes", "Tao of Rodney")

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