The antidote for civilization.

As a fragment, the phrase reads like a sardonic label: whatever is being described is imagined as a corrective to the pressures, artificiality, or moral compromises associated with “civilization.” It implies that civilization can function like a toxin—producing stress, conformity, alienation, or decadence—and that an “antidote” would restore balance through simplicity, nature, solitude, candor, or some form of primal or unmediated experience. Because the object of the antidote is unstated, the line works best as a caption or epigram, inviting readers to supply their own remedy (wilderness, art, love, humor, etc.) and thereby turning the phrase into a critique of modern life.