What holds the world together, as I have learned from bitter experience, is sexual intercourse.

In keeping with Miller’s provocative, bodily frank worldview, the line asserts sex as a primary social adhesive: a force that cuts across class, ideology, and personal alienation to bind people in a shared, physical reality. The phrase “bitter experience” suggests the claim is not celebratory but hard-won—arrived at through disillusionment with more elevated explanations (religion, politics, art, morality) that often fail to reconcile human conflict. Read this way, Miller is both demystifying and mythologizing sex: demystifying it as mere biology, yet elevating it as the most reliable engine of connection, continuity, and meaning when other systems collapse.