McCartney dijo que escribió "Let It Be" tras soñar con su madre durante la tensas sesiones para la grabación del disco. McCartney explicó que su madre, que había fallecido cuando él tenía 14 años, fue la inspiración de la Mother Mary a la que se refiere la letra. Posteriormente McCartney declaró:
"Me encantaría que me volviera a visitar. Me sentí bendecido por tener ese sueño. Eso me hizo escribir 'Let It Be'."
When I find myself in times of trouble, Mother Mary comes to me Speaking words of wisdom, let it be And in my hour of darkness she is standing right in front of me Speaking words of wisdom, let it be Let it be, let it be, let it be, let it be Whisper words of wisdom, let it be And when the broken hearted people living in the world agree There will be an answer, let it be For though they may be parted, there is still a chance that they will see There will be an answer, let it be Let it be, let it be, let it be, let it be There will be an answer, let it be Let it be, let it be, let it be, let it be Whisper words of wisdom, let it be Let it be, let it be, let it be, let it be Whisper words of wisdom, let it be And when the night is cloudy there is still a light that shines on me Shine until tomorrow, let it be I wake up to the sound of music, Mother Mary comforts me Speaking words of wisdom, let it be Let it be, let it be, let it be, yeah, let it be There will be an answer, let it be Let it be, let it be, let it be, yeah, let it be Whisper words of wisdom, let it be