The following poem by Stephen Crane is short and cryptic. But it sticks in one’s craw. And the last two lines were taken by Joyce Carol Oates as a title for one of her novels.
In the Desert
In the desert I saw a creature, naked, bestial, Who, squatting upon the ground, Held his heart in his hands, And ate of it. I said, “Is it good, friend?” “It is bitter—bitter,” he answered; “But I like it “Because it is bitter, “And because it is my heart.”