"The history of American spirituality reveals that our commonplace understanding of spirituality—as the individual, experiential dimension of human encounter with the sacred—arose from the clash of American Protestantism with the forces of modern life in the nineteenth century. While religious conservatives fought to stem the tide, giving rise to fundamentalism, religious liberals adapted their faith to modernity, often by discarding orthodoxies in favor of Darwinism, psychology, and comparative religions.
"The majority of today’s religious “nones”—those who claim no religion but still embrace spirituality—are engaged in the same task of renovating their faith for a new historical moment. And typically, they draw from this same liberal religious toolkit. Today’s unaffiliated, like the liberals of previous generations, typically shun dogma and creed in favor of a faith that is practical, psychologically attuned, ecumenical—even cosmopolitan—and ethically oriented.
"This liberal spirituality, as it has evolved over time, has been deeply entwined with media-oriented consumerism. Of course Americans of all religious varieties have been deeply influenced by consumerism, but media and markets have particularly shaped the religious lives of those without formal institutional or community ties. The religiously unaffiliated might not attend services, but they “do” their religion in many other ways: they watch religion on TV and listen to it on the radio; find inspiration on the web; attend retreats, seminars, workshops, and classes; buy candles and statues, bumper stickers and yoga pants; take spiritually motivated trips; and, perhaps most significantly, buy and read books."
Liberal Protestantism won the cultural battle, and evacuated itself as a distinct public in the process, vomiting its ethos and its members into the larger national consumer group -- and industries (publishers, online social networking tools, workshops, etc.) took over the role of supplying both the continuances and the reforming-and-reformulating replacements for the older (post-Reformation Mainline Protestant) order.