In the rites of the classical mystery cults the initiatory symbolic shocks were experienced in graduated series by neophytes spiritually ready, who were carried thereby through expanding revelations to whatever sign or event, displayed within the ultimate sanctum, conferred the consummating epiphany. But life too confers initiations, and the most potent of these are of sex and death. Life too communicates revelatory shocks, but they are not pedagogically graded. These initiations are administered both to those prepared and to those who are unprepared, and while the latter either receive from them no instruction or, worse, are left damaged (insane, a bit exploded, defensively hardened, or inert), those ready receive initiations that may not only match but even surpass the revelations of the cults. For since life is itself the background from which the prophets of yore of both the great and the little ceremonial systems derived their initial inspirations, life holds still in store the possibilities of the same enlightenment anew, and of more and greater besides.


— Joseph Campbell, The Masks Of God: Creative Mythology