Final answer:
Decius Brutus reinterprets Calpurnia's dream to mean that Caesar will bring prosperity to Rome, not that harm will come to Caesar.
Step-by-step explanation:
Decius Brutus claims that Calpurnia's dream has been misinterpreted as an omen of harm to Caesar. In reality, Decius interprets the dream as a sign of good fortune, suggesting it symbolizes that Caesar will bring prosperity and benefit to Rome. Decius argues that instead of Caesar's blood being a sign of his demise, it is an allegory for Rome being revitalized by his leadership, with Romans bathing in his blood to signify their rejuvenation thanks to Caesar's power and influence.