 Torsten Kinsella said that the Greek words and imagery were not necessarily related to any central theme, rather they were “names that suited the tracks”.He described the album as having “moments of darkness in it...moments of brightness” a “darker record” conceived from an idea of “apocalyptic culture”.The album is named after the Greek mythological God Helios, the personification of the Sun, and Erebus, the embodiment of darkness.