 Although cast in the form of a love song, McCartney described the lyric as "an ode to pot, like someone else might write an ode to chocolate or a good claret".The initial version of the song, as issued on "Anthology 2", featured acoustic backing and organ, and a harmonised refrain of "I need your love", which was replaced by Harrison's guitar break on the more uptempo remake.Rodriguez describes Lennon's "Tomorrow Never Knows" as "the greatest leap into the future" of the Beatles' recording career up to this point.