If I Ain't Got You by Alicia Keys is a heartfelt R&B ballad that delves into the theme of true love and its unparalleled value. Alicia Keys sings about the insignificance of material wealth and worldly possessions when compared to the importance of having genuine love and companionship. The song emphasizes that without love, even the greatest riches are meaningless. Key themes in the song include love, fulfillment, and the quest for what truly matters in life. Poignant moments include the repeated assertion that 'some people want it all, but I don’t want nothing at all, if it ain’t you, baby,' highlighting the depth of the singer's feelings and the song's central message.