"Lurid reflections appear on the walls around Blanche. The shadows are of a grotesque menacing form." - scene 10
Hallucinations and visons portray Blanches ever-growing madness and loss of grip on reality.
shows are a metaphor for Blanches inner psychology and use of plastic theatre through the shadows is a reference to how death, in specific Allan's, will follow Blanche everywhere as a constant reminder of her true vicious nature.
'lurid reflections [that] appear on the walls around Blanche' in a 'grotesque and menacing' form act to build suspense and replicate the internal chaos of Blanche's disordered mind. This stagecraft exploits expressionist theatre/ expressionistic techniques in order to visually symbolise the mental aspects of the play.