Don't Leave The Light On Baby by Belle & Sebastian delves into the emotions and complexities of a fading relationship. The song articulates the themes of love, longing, and loss as the narrator reflects on the love that has diminished over time. There are moments of poignant introspection as they acknowledge the impending end, and the lyrics convey a sense of acceptance and melancholy. The repeated plea to not leave the light on symbolizes a desire to avoid prolonging the inevitable and highlights the bittersweet nature of moving on.