Heaven is one of the afterlives of the Inferno, Firmament and Empyrea universes, alongside Hell, Fairyland and Limbo. It is populated entirely by . Heaven is an infinite plane consisting entirely of a glowing, malleable white substance referred to as 'cloud fluff' which makes an excellent raw material for angels to transform. There is no light source except for what is cast by the cloud fluff's glow. Angels typically live in groups, with each angel residing in a cave carved out of the surrounding fluff. Heaven periodically experiences concordances with the other afterlives; Fairyland and Limbo concordances are dedicated to a cross-afterlife postal service, while concordances with Hell are spent as an angel vs. brawl.