- "Ever gazed upon the green flash, Master Gibbs?"
"I reckon I've seen my fair share. Happens on rare occasion; the last glimpse of sunset, a green flash shoots up into the sky. Some go their whole lives without ever seeing it. Some claim to have seen it who ain't. And some say—"
"It signals when a soul comes back to this world, from the dead!" - ―Hector Barbossa, Joshamee Gibbs and Pintel to William Turner
"Green flash" is the term given to rare optical phenomena that occur shortly after sunset or before sunrise, when a green spot is visible for a short period of time above the sun, or a green ray shoots up from the sunset point.
It was thought that the green flash signified the return of a soul from the land of the dead. It was seen by the crew of the Black Pearl in the last moment of their escape from Davy Jones' Locker, signalling the return of Jack Sparrow. The green flash accompanied the Flying Dutchman's transition from the world to this dimension under the command of Captain William Turner.