- Love and obsession: The Phantom's love for Christine is obsessive and all-consuming. He is willing to do anything to possess her, even if it means hurting or killing others.
- Beauty and ugliness: The Phantom is a physically deformed man who lives in the sewers beneath the Paris Opera House. He is ashamed of his appearance and hides from the world. Christine is a beautiful woman who is drawn to the Phantom's music. The Phantom sees Christine as a symbol of beauty and purity, and he longs to be with her.
- Art and reality: The Phantom is a brilliant musician and composer. His music is so beautiful that it can transport listeners to another world. However, the Phantom's art is also a source of pain for him. He is unable to share his music with the world, and he feels like an outsider.
- Class conflict: The Phantom is a member of the lower class, while Christine is a member of the upper class. The Phantom's love for Christine is forbidden, and it ultimately leads to his downfall.
- Redemption: The Phantom is eventually redeemed by his love for Christine. He sacrifices his own life to save her, and he finds peace at last.