All My Loving by The Beatles is a classic love song that expresses heartfelt devotion and longing. In the song, the narrator promises to send all their love to their partner while they are apart. The key themes are love, distance, and commitment. There's a poignant sense of missing a loved one but also a dedication to keeping the love alive despite the distance. Notable moments include the repeated assurances of unwavering love and the upbeat tempo that adds an optimistic feel to the otherwise longing lyrics.