What does Mere anarchy is loosed up the world mean?

The phrase "Mere anarchy is loosed upon the world" suggests a state of complete disorder and chaos that has been unleashed in society. It reflects a breakdown of established structures and norms, leading to confusion and instability. This line, from W.B. Yeats' poem "The Second Coming," captures the anxiety and turmoil of a world in crisis, where traditional values and order have collapsed, giving way to unpredictability and turmoil.