Old South vs New South
You're watching two Americas collide in this play. Blanche represents the dying Old South - aristocratic, refined, clinging to faded gentility. Stanley embodies the New South - working-class, immigrant, industrial, and unapologetically crude.
Physical appearances tell the story: Blanche arrives in delicate white clothes that don't fit the rough setting, whilst Stanley's colourful, practical clothing shows he belongs. Her fading beauty contrasts with his peak physical strength, symbolising which world is winning.
The language differences are crucial. Blanche speaks in sophisticated, multi-layered sentences peppered with French phrases and literary references. Stanley communicates in simple, direct terms that cut through her elaborate facades. This isn't just personality - it's about which communication style survives in modern America.
Belle Reve's loss represents more than Blanche's personal tragedy - it symbolises the entire collapse of the plantation aristocracy. The "white columns" Stanley claims he pulled Stella down from represent the purity and stability of the old order that can't survive contact with raw, modern reality.
Cultural Context: Remember that Williams was writing about post-war America, where traditional hierarchies were crumbling and new social orders were emerging.