Illness is the night-side of life, a more onerous citizenship. Everyone who is born holds dual citizenship, in the kingdom of the well and in the kingdom of the sick. Although we all prefer to use only the good passport, sooner or later each of us is obliged, at least for a spell, to identify ourselves as citizens of that other place.
I want to describe not what it’s really like to emigrate to the kingdom of the ill and to live there, but the punitive or sentimental fantasies concocted about that situation; not real geography but stereotypes of national character. My subject is not physical illness itself but the uses of illness as a figure or metaphor. My point is that illness is not a metaphor, and that the most truthful way of regarding illness—and the healthiest way of being ill—is one most purified of, most resistant to, metaphoric thinking. Yet it is hardly possible to take up one’s residence in the kingdom of the ill unprejudiced by the lurid metaphors with which it has been landscaped. It is toward an elucidation of those metaphors, and a liberation from them, that I dedicate this inquiry.
Two diseases have been spectacularly, and similarly, encumbered by the trappings of metaphor: tuberculosis and cancer.
The fantasies inspired by TB in the last century, by cancer now, are first of all responses to a disease thought to be intractable and capricious—that is, a disease not understood—in an era in which medicine’s central premise is that all diseases can be cured. Such a disease is, by definition, mysterious. For as long as what causes TB was not understood and the ministrations of doctors remained so ineffective, TB was thought to be an insidious, implacable theft of a life. Now it is cancer’s turn to be the disease that doesn’t knock first before it enters, cancer that fills the role of an illness experienced as a ruthless, secret invasion—a role it will keep until, one day, its etiology is as clear and its treatment as efficacious as those of TB have become.
Although the way in which disease mystifies us is grounded in new expectations, the disease itself (once TB, now cancer) arouses thoroughly old-fashioned kinds of dread. Any disease that is treated as a mystery and acutely enough feared will be felt to be morally, if not literally, contagious. Thus a surprisingly large number of people with cancer find themselves being shunned by relatives and friends and are the object of practices of decontamination by members of their household, as if cancer, like TB, were an infectious disease. Contact with someone afflicted with a disease regarded as a mysterious malevolency inevitably feels like a trespass; worse, like the violation of a taboo. The very names of such diseases are felt to have a magic power. In Stendhal’s Armance (1827), the hero’s mother refuses to say “tuberculosis” for fear that pronouncing the word …
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