What was the catharsis in Julius Caesar?

In Julius Caesar, the catharsis occurs when Brutus delivers his famous "Friends, Romans, countrymen" speech after Caesar's assassination. This speech is a turning point in the play as it sways the crowd in Brutus' favor, convincing them that Caesar's death was necessary for the good of Rome. The speech is also significant in that it marks Brutus' transformation from a hesitant conspirator to a resolute leader. His powerful words and genuine passion resonate with the audience, allowing them to experience a sense of release and emotional cleansing, which is the essence of catharsis in tragedy.