“Ever ‘gainst that season comes
Wherein our Saviour’s birth is celebrated,
The bird of dawning singeth all night long.
And then, they say, no spirit dare stir abroad.
The nights are wholesome. Then no planets strike,
No fairy takes, nor witch hath power to charm,
So hallowed and so gracious is that time.”

 

                                             –  Hamlet, I.viii.157-163