Can't Imagine Love Without You is a soulful ballad by Stevie Wonder that explores the profound emotions associated with deep, unwavering love. The song speaks about the significance of a loved one in the singer's life, emphasizing that life would be incomplete and unimaginable without their presence. Key themes include love, devotion, and the irreplaceable value of a beloved partner. Particularly poignant moments in the song highlight the depth of the singer's attachment and the fear of losing someone irreplaceable, making it a touching ode to everlasting love.