Every Little Thing by The Beatles is a heartfelt song about appreciating the small gestures and moments in a romantic relationship. The lyrics convey gratitude and admiration for a partner who makes life brighter through their loving actions. Themes of love, gratitude, and the significance of minor details in a relationship are central to the song. Key moments include the chorus where the repetition of 'Every little thing she does' emphasizes the continual impact of the partner's actions on the narrator's happiness.