"Underworld's song Sole Survivor" talks about the search for a beating heart, a sense of vitality and connection, within the heart of a city. The lyrics depict a city filled with money, pressure, and desperation, where people are consumed by their struggles and anxieties. The protagonist of the song recognizes the need to find something more meaningful and alive amidst this chaotic urban environment. The song emphasizes the idea of survival and the constant struggle to make a living, with the mention of a monkey on the back representing the burdens and hardships weighing people down. The reference to the faces on the underground being in a state of desperation implies that many individuals feel trapped in their situations. The repeated mention of being at the bottom of a mine shaft refers to feeling isolated and disconnected from humanity. It implies that amidst the city's hustle and bustle, there are individuals who feel like the sole survivors, distant from the beating heart of community and connection. The song also highlights the lack of meaningful human interaction in the city, as people can go through their day without acknowledging or engaging with others. The monotony and loneliness of daily life are represented by the description of endless grey. Overall, "Sole Survivor" reflects on the struggle to find a sense of life and vibrancy in a cold and indifferent urban landscape, and the longing for genuine human connection.