This quotation from Act 5, Scene 1, immediately after Romeo is told that Juliet is dead. 'I defy you, stars' could be seen as blasphemous as he is going against the heavens and God. This would resonate strongly in the highly religious society at the time. Alternatively, this quotation could show that Romeo intends to defy fate, this causes a paradox as we are told in the prologue that it is inevitable that Romeo and Juliet will take their lives, and it is impossible to defy fate.