Illusion versus reality
Every character uses some form of illusion to get through the day. Amanda lives in her Southern past. Laura hides in her glass animals. Tom pretends the movies are enough. The play shows what happens when reality breaks through anyway.
Escape and entrapment
Tom wants to leave. Laura can't engage with the outside world. Amanda is trapped by poverty and a husband who already ran. The apartment itself feels like a cage. Williams shows escape as something that's possible physically but not emotionally.
Memory and guilt
Tom narrates from a distance in time, and guilt shapes every scene he describes. The play asks whether leaving people behind is something you can ever fully do. Tom's answer, given at the end, is no.
The failure of the American Dream
Jim O'Connor was the high school star with every advantage. Now he's a warehouse worker taking night classes in public speaking. Tom works a dead-end job despite his ambitions. Amanda's dreams for her children collide with what the Depression-era economy actually offers.
Fragility and damage
Laura's glass animals break easily. Laura herself is described as fragile. The unicorn losing its horn during Jim's visit mirrors what happens to Laura emotionally. Williams uses physical fragility throughout to show emotional vulnerability.