Rolling in the deep

O Man! Attend!
What does deep midnight's voice contend?
"I slept my sleep,
And now awake at dreaming's end:
The world is deep,
Deeper than day can comprehend.
Deep is its woe,
Joy—deeper than heart's agony:
Woe says: Fade! Go!
But all joy wants eternity,
Wants deep, deep, deep eternity!

                                
                            —Nietzsche