What does 'peripeteia' signify in a dramatic narrative?

'Peripeteia' signifies a crucial turning point in a dramatic narrative, particularly one that shifts the character's situation from stability or safety into a state of conflict or danger. This concept is vital in understanding the arc of a story, as it represents the moment where the protagonist's fortunes take a significant turn, often leading to increased tension and stakes in the plot. This moment often precedes or sets up the climactic events that follow, making it a key component in the development of drama and tragedy. The nature of peripeteia helps to build emotional investment in the narrative, as audiences witness characters facing unforeseen challenges, thus propelling the story forward.