"Songs are the language of the spirit... the melodies are how you sing to God. It's a deep language. But they can't explain everything, because really great songs touch places that you can't explain."
According to an interview from 1982 the song 'October' is about the Bolsheviek revolution in Russia in 1917, that brought Communism to power. This theme is mixed with a personal theme, possibly Bono's mothers death.