Warren
Warren is ultimately a symbol of narcissism and arrogance, and how these traits can damage a person's life. Significantly, Warren's arrogance impacts his personal relationships, making him unable to truly connect with anyone. He is also shown to be unable to hold down a relationship, as Paul states he has had many wives.
Joe Castle
As the opposite of Warren, Castle represents virtue, integrity, and morality. He is shown to be a forgiving and kind character, despite the tragic events he has experienced.
Calico Rock
Calico Rock is the hometown of Joe Castle, leading to his nickname "Calico Joe." Ultimately, this town symbolizes Joe's humble beginnings, and he puts this small town on the map due to his achievements.
Castle's accident
Castle's accident is a symbol of the tragedy of life, and the fact that nobody can control what is going to happen. Although Castle seemed certain to have a fruitful and successful career in baseball, fate had other ideas for him, and his life turned upside down after the accident.
The meeting between Warren and Castle
The meeting between Warren and Castle symbolizes the resolution of the events that took place in 1973. Although Warren cannot turn back the clock, he took responsibility for what happened and agreed to meet up with Castle.