Lethe alpha literally means "un-forgetfulness" or "un-concealment". Lethe, the river of forgetfulness, was one of the five rivers of the Greek underworld, the other four being Styx, Acheron (the river of sorrow), Cocytus (the river of lamentation) and Phlegethon (the river of fire). According to Statius, it bordered Elysium, the final resting place of the virtuous. Ovid wrote that the river flowed through the cave of Hypnos, god of sleep, where its murmuring would induce drowsiness. The shades of the dead were required to drink the waters of the Lethe in order to forget their earthly life. In the "Aeneid", Virgil
The Earth Is Not a Cold Dead Place said "The Earth Is Not a Cold Dead Place" was the band's "attempt at love songs". The vinyl version of the album features etchings of birds on side D accompanied by the phrase "The Earth is not a cold dead place because you are breathing, because you are listening." "The Earth Is Not a Cold Dead Place" received positive reviews from critics, with a rating of 86 out of 100 on Metacritic, based on reviews from 17 critics, indicating "universal acclaim". "Your Hand in Mine" was adapted for inclusion in the "Friday Night Lights" soundtrack, along with other original material