City of Heroes
This is the place where Erfworlders believe that those units who are courageous and good go after they croak, comparable to Valhalla of the Vikings. The Titans judge at night, after all turns have ended, if an unit may enter this place and start their next turn there. At least this is the belief among some units.
The scripture refers to this place.
Real World References
City of Heroes is an MMORPG. In the eponymous city that serves as the game's setting, only Heroes are allowed to be created (there is a seperate city for villians), which may indicate that the Erfworld equivalent is a resting place for "Good" units.