In Act I, scene ii (p. 1020), King Claudius tells Hamlet: “[…

In Act I, scene ii (p. 1020), King Claudius tells Hamlet: “ you have to remember, that your father lost his father who lost his father before him, and every time, eachson has had to mourn his father for a certain period. But overdoing it is just stubborn. It’s not manly…’” What does King Claudius mean by these lines?