Will-o'-the-wisp A will-o'-the-wisp is an atmospheric ghost light seen by travelers at night, especially over bogs, swamps or marshes. It resembles a flickering lamp and is said to recede if approached, drawing travelers from the safe paths.
Anytime I see those wispy fire ghost things, I think of the Legend of Dragoon. They were the first time I've seen those, and I never saw them again for the longest time. Funny how the brain works