Wanderlust, a song by Paul McCartney, speaks to the theme of seeking freedom and adventure while reflecting on past decisions and the longing for new experiences. The term 'wanderlust' refers to a strong desire to travel and explore the world, and McCartney uses it both literally and metaphorically. The lyrics convey a sense of yearning and restless spirit, with particularly poignant moments as McCartney reflects on the pressure of life's commitments and the need to break free from them. The song resonates with listeners who have felt the urge to escape and discover new horizons.