n the late 1960s and 70s, droves of hippies and freaks bounced back from various countercultural bummers by embracing the “One Way” of Jesus Christ. Though they rejected many aspects of the underground scene—fun stuff like drugs, free love, and the occult smorgasbord—the Jesus Freaks kept others very much alive. They had a strong yen for intense spiritual experiences and communal tribes, as well as an apocalyptic sense of imminent global transformation. In stark contrast to previous generations of American Christians, who largely rejected popular culture as the devil’s work, these hirsute believers also embraced countercultural media—street newspapers, bumper-stickers, coffee...