Prince Henry. I cannot sleep! my fervid brain
Calls up the vanished Past again,
And throws its misty splendors deep
Into the pallid realms of sleep! 
A breath from that far-distant shore
Comes freshening ever more and more,
And wafts o’er intervening seas
Sweet odors from the Hesperides! 
A wind, that through the corridor
Just stirs the curtain, and no more,
And, touching the aeolian strings,
Faints with the burden that it brings! 
Come back! ye friendships long departed! 
That like o’erflowing streamlets started,
And now are dwindled, one by one,
To stony channels in the sun! 
Come back! ye friends, whose lives are ended! 
Come back, with all that light attended,
Which seemed to darken and decay
When ye arose and went away! 
They come, the shapes of joy and woe,
The airy crowds of long-ago,
The dreams and fancies known of yore,
That have been, and shall be no more. 
They change the cloisters of the night
Into a garden of delight;
They make the dark and dreary hours
Open and blossom into flowers! 
I would not sleep!  I love to be
Again in their fair company;
But ere my lips can bid them stay,
They pass and vanish quite away!

Alas! our memories may retrace
Each circumstance of time and place,
Season and scene come back again,
And outward things unchanged remain;
The rest we cannot reinstate;
Ourselves we cannot re-create,
Nor set our souls to the same key
Of the remembered harmony!

Rest! rest!  O, give me rest and peace! 
The thought of life that ne’er shall cease
Has something in it like despair,
A weight I am too weak to bear! 
Sweeter to this afflicted breast
The thought of never-ending rest! 
Sweeter the undisturbed and deep
Tranquillity of endless sleep!

(A flash of lightning, out of which LUCIFER appears, in the garb of a travelling Physician.)

  Lucifer.  All hail Prince Henry!

Prince Henry (starting).  Who is it speaks?  Who and what are you?

Lucifer.  One who seeks A moment’s audience with the Prince.

  Prince Henry.  When came you in?

Lucifer.  A moment since.  I found your study door unlocked, And thought you answered when I knocked.

  Prince Henry.  I did not hear you.

Lucifer.  You heard the thunder;
It was loud enough to waken the dead. 
And it is not a matter of special wonder
That, when God is walking overhead,
You should not have heard my feeble tread.

  Prince Henry.  What may your wish or purpose be?

Lucifer.  Nothing or everything, as it pleases
Your Highness.  You behold in me
Only a traveling Physician;
One of the few who have a mission
To cure incurable diseases,
Or those that are called so.