If sexual physiology provides the pattern for our experience of the world, what is woman's basic metaphor? It is mystery, the hidden. Karen Horney speaks of a girl's inability to see her genitals and a boy's ability to see his as the source of "the greater subjectivity of women as compared with the greater objectivity of men." To rephrase this with my different emphasis: men's delusional certitude that objectivity is possible is based on the visibility of their genitals. Second, this certitude is a defensive swerve from the anxiety-inducing invisibility of the womb. Women tend to be more realistic and less obsessional because of their toleration for ambiguity which they learn from their inability to learn about their own bodies. Women accept limited knowledge as their natural condition, a great human truth that a man may take a lifetime to reach.The female body’s unbearable hiddenness applies to all aspects men’s dealings with women. What does it look like in there? Did she have an orgasm? Is it really my child? Who was my real father? Mystery surrounds women’s sexuality. This mystery is the main reason for the imprisonment man has imposed on women. Only by confining his wife in a locked harem guarded by eunuchs could he be certain that her son was also his.