The song "Arthur Nix" by Jupiter Sunrise is about a person named Arthur Nix who was in an accident while riding his bike. After the accident, Arthur became quiet and pensive, and the song wonders if his physical injuries healed faster than his emotional wounds. The lyrics express a desire to protect people from harm and remove anything that could hurt them, but also acknowledge the reality that this is not possible. The song encourages Arthur to focus on the present and enjoy simple pleasures like riding his bicycle and playing Four-Square. The cast on his arm, with all the names written on it, represents the support and well-wishes of his friends and family. Overall, the song is a message of hope and encouragement for someone who has been through a traumatic experience.