What is infrared light? - Herschel Space Observatory - ir light spectrum
It seems that the name for Ghostlights is not not just a title. Multiple songs reference ghostlights throughout the album implying some further meaning.
Spot LightingOutdoor
Spot lightingindoor
Founded in 2003, **Poets of the Fall** has released 8 studio albums, a DVD called *Live in Moscow* showcasing one of their live concerts, and they have won several awards, including the Muuvi People's Choice Award for *Carnival of Rust*. **Poets of the Fall** also has written music for video games such as Max Payne, Alan Wake, and Control. For Control and Alan Wake, they are featured under an alter ego called **Old Gods of Asgard**.
Ghostlights are often used in theatres as a light in the back of the stage for people to move around in the dark when it would otherwise be pitch black. There is also a superstition about Ghostlights that they are in theatres so that the "theatre ghost" can perform when the living are away. This has resulted in Ghostlights perpetually being on.
Due to albums main theme seeming to be about the writer finding a way out of a dark time in their life, could the Ghostlights represent those points or people that give the writer hope to escape this dark place?