The song Painting By Numbers by Mary Hopkin speaks about someone living their life in a rigid and structured manner, following a set of rules or a predetermined path. They try to control everything and keep their emotions hidden, but this ultimately leads to a life that is dry and lacking in color. The lyrics also touch on the idea of the narrator trying to fit into this person's life, following their rules and playing the role they expect her to play. However, despite her efforts, she feels alone and unfulfilled in their relationship. The metaphor of painting by numbers represents the idea of living a life that is predetermined or restricted, with little room for individuality or creativity. The figures outlined neatly may represent the rigid structure this person has created for themselves. In the end, the song suggests that this kind of life may be unsustainable, and will eventually fade away into nothingness. The narrator seems to be urging the person to embrace their emotions and live a more authentic life, rather than trying to control every aspect of it.