Here is a brief excerpt from a timely and thoughtful article by David Brooks for The New York Time. To read the complete article, check out others, and obtain subscription information, please click here.

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After the terrorist attack in San Bernardino, some people’s minds flew to the materialistic element of the atrocity — the guns that were used in the killing. But the crucial issue, it seems to me, is what you might call the technology of persuasion — how is it that the Islamic State is able to radicalize a couple living in Redlands, Calif.? What psychological tools does it possess that enable it to wield this far-flung influence?

The best source of wisdom on this general subject is still The True Believer, by Eric Hoffer, which he wrote back in 1951. Hoffer distinguished between practical organizations and mass movements. The former, like a company or a school, offer opportunities for self-advancement. The central preoccupation of a mass movement, on the other hand, is self-sacrifice. The purpose of an organization like ISIS is to get people to negate themselves for a larger cause.

Mass movements, he argues, only arise in certain conditions, when a once sturdy social structure is in a state of decay or disintegration. This is a pretty good description of parts of the Arab world. To a lesser degree it is a good description of isolated pockets of our own segmenting, individualized society, where some people find themselves totally cut off.

The people who serve mass movements are not revolting against oppression. They are driven primarily by frustration. Their personal ambitions are unfulfilled. They have lost faith in their own abilities to realize their dreams. They sometimes live with an unrelieved boredom. Freedom aggravates their sense of frustration because they have no one to blame but themselves for their perceived mediocrity. Fanatics, the French philosopher Ernest Renan argued, fear liberty more than they fear persecution.

The successful mass movement tells such people that the cause of their frustration is outside themselves, and that the only way to alter their personal situation is to transform the world in some radical way.

To nurture this self-sacrificing attitude, the successful mass movement first denigrates the present. Its doctrine celebrates a glorious past and describes a utopian future, but the present is just an uninspiring pit. The golden future begins to seem more vivid and real than the present, and in this way the true believer begins to dissociate herself from the everyday facts of her life: Her home, her town, even her new child. Self-sacrifice is an irrational act, so mass movements get their followers to believe that ultimate truth exists in another realm and cannot be derived from lived experience and direct observation.

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The correct response is still the same, however. First, try to heal the social disintegration that is the seedbed of these movements. Second, offer positive inspiring causes to replace the suicidal ones. Third, mass movements are conquered when their charisma is destroyed, when they are defeated militarily and humiliated. Then they can no longer offer hope, inspiration or a plausible way out for the disaffected.

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Here is a direct link to the complete article.

David Brooks became a New York Times Op-Ed columnist in September 2003. He has been a senior editor at The Weekly Standard, a contributing editor at Newsweek and the Atlantic Monthly, and he is currently a commentator on “The Newshour with Jim Lehrer.” He is the author of Bobos In Paradise: The New Upper Class and How They Got There and On Paradise Drive: How We Live Now (And Always Have) in the Future Tense, both published by Simon & Schuster. The Social Animal: The Hidden Sources of Love, Character, and Achievement, published by Random House in March 2011. His latest book is The Road to Character, also published by Random House (April 2015). As he explains, “I wrote this book not sure I could follow the road to character, but I wanted at least to know what the road looks like and how other people have trodden it.”