Answer: Brutus is one of the leaders of the assassination.
In the play Julius Caesar, by William Shakespeare, Calpurnia (Caesar's wife) has a dream. In this dream, a statue of Caesar is bleeding, and the Roman citizens are washing their hands in the blood. Calpurnia sees that Caesar will die in her arms, and tries to warn him so that he does not go to the Senate. The dream aligns with a prophecy that a soothsayer told him during the feast of Lupercal.
In this scene, Brutus is trying to convince Caesar to ignore Calpurnia's premonition and come meet the Senate. His motive is that he is one of the leaders of the assassination, and needs him to come so that they can commit the crime.