The song's musical sophistication is demonstrated by its multiple contrapuntal vocal parts and weak tonal center (competing between the keys of E and A). Lyrically, the words are expressed from the perspective of a narrator who asserts that life without their lover could only be fathomed by God—an entity that had been considered taboo to name in the title or lyric of a pop song. It marked a departure for Wilson, who attributed the impetus for the song to Asher's affinity for standards such as "Stella by Starlight". Some interpretations of the lyrics project a suicidal inclination onto the narrator, although Asher said that such impressions were unintentional.