The song was noted for its resemblance to the band's previously recorded material for their debut studio album Fallen (2003), particularly to "My Immortal".
The song is a mid-tempo power ballad which lyrically discusses the uncertainty of the protagonist in choosing between feelings of sorrow and happiness; Lee was inspired by the drug lithium and the feeling of numbness it induces.
The clip managed to peak at number four on TRL's countdown list of the best music videos in January 2007.