in The Tragedy Of Julius Caesar, what does Antony mean when he says “O, mighty Caesar! Dost thou lie so low? Are all they conquest, glories,

in The Tragedy Of Julius Caesar, what does Antony mean when he says “O, mighty Caesar! Dost thou lie so low? Are all they conquest, glories, triumphs, spoils shrink to this little measure? Fare the well.” ? and to who he tell that?