Goodbye by Elton John is a poignant ballad that delves into themes of farewell and the weight of loss. The song's lyrics convey a deep sense of longing and emotional closure. Elton John's heartfelt delivery and the melancholic piano accompaniment underscore the sadness of parting ways. Key moments in the song highlight the struggle to let go and the impact of separation on one's heart. Overall, it's a reflective piece about saying goodbye, capturing the sorrow and introspection that come with endings.