Anality

"Excreting is the curse that threatens madness because it shows man his abject finitude, his physicalness, the likely unreality of his hopes and dreams. But even more immediately, it represents man's utter bafflement ath the sheer non-sense of creation: to fashion the sublime miracle of the human face, the mysterium tremendum of radiant feminine beauty, the veritable goddesses that beautiful women are; to bring this out of nothing, out of the void, and make it shine in noonday; to take such a miracle and put miracles again within it, deep in the mystery of eyes that peer out-the eye that gave even the dry Darwin a chill: to do all this, and to combine it with an anus that shits! It is too much. Nature mocks us, and poets live in torture."

-Ernest Becker
Denial of Death