Cold Light is the name for a deity in The Trinity, who occupies the Seat of Observance. To the uninitiated, Cold Light is a strange concept, a god of mathematical logic and knowledge that has no agency and is considered to be the sky itself. At his first act after apotheosis, Ilmater was said to have created Cold Light retroactively to set the world to linear time. Holy astronomers track the movement of constellations and other celestial bodies under Cold Light as "potential Truth-Forms", said to predict the future.