Puck. And yonder shines Aurora's harbinger,
At whose approach, ghosts, wandering here and there,
Troop home to church-yards.

Aurora's harbinger is Lucifer, the morning star.

"Now the bright morning star, day's harbinger,
Comes dancing from the East——"[11]

It was the popular belief that ghosts retired at the approach of day. Thus the spirit of Hamlet's father exclaims,

"But soft, methinks I scent the morning air."

In further illustration see a subsequent note on Hamlet, Act I. Scene 1.

Scene 2. Page 117.

Hel. And, sleep, that sometime shuts up sorrow's eye.

Again, in Macbeth:

"Sleep, that knits up the ravell'd sleave of care."