From The Art of Manliness,
“What, if some day or night a demon were to steal after you into your loneliest loneliness and say to you: ‘This life as you now live it and have lived it, you will have to live once more and innumerable times more; and there will be nothing new in it, but every pain and every joy and every thought and sigh and everything unutterably small or great in your life will have to return to you, all in the same succession and sequence—even this spider and this moonlight between the trees, and even this moment and I myself. The eternal hourglass of existence is turned upside down again and again, and you with it, speck of dust!'” –Friedrich Nietzsche, The Gay Science
TAoM asks: How would you live if you were to repeat this life, as it is lived this time, over and over again for eternity?
This is frightful. How does the prospect strike you?