Sails by Elton John is a reflective song that delves into themes of departure, longing, and the endless journey of life. The imagery of sails evokes the idea of setting off on a journey, whether literal or metaphorical. The key themes include the search for meaning, the passage of time, and the human desire for freedom and exploration. Particularly poignant moments in the song occur when the lyrics address the emotional aspects of leaving behind familiar shores to discover new horizons.