The people who call me an apologist are often those who deride religion as I used to do, and I’ve found that former part of my life to have been rather a limited one.

Your new book is a history of religion and violence. You point out, though, that the concept of “religion” didn’t even exist before the early modern period. What exactly are we talking about, then, when we talk about religion and violence before modern times?

First of all, there is the whole business about religion before the modern period never having been considered a separate activity but infusing and cohering with all other activities, including state-building, politics and warfare. Religion was part of state-building, and a lot of the violence of our world is the violence of the state. Without this violence we wouldn’t have civilization. Agrarian civilization depended upon a massive structural violence. In every single culture or pre-modern state, a small aristocracy expropriated the serfs and peasants and kept them at subsistence level.

This massive, iniquitous system is responsible for our finest achievements, and historians tell us that without this iniquitous system we probably wouldn’t have progressed beyond subsistence level. Therefore, we are all implicated in this violence. No state, however peace-loving it claims to be, can afford to disband its army, so when people say religion has been the cause of all the major wars in history this is a massive oversimplification. Violence is at the heart of our lives, in some form or another.

How do ritual and religion become entangled with this violence?

Well, because state-building was imbued with religious ideology. Every state ideology before the modern period was essentially religious. Trying to extract religion from political life would have been like trying to take the gin out of a cocktail. Things like road-building were regarded as a sort of sacred activity.

Politics was imbued with religious feeling. The prophets of Israel, for example, were deeply political people. They castigated their rulers for not looking after the poor; they cried out against the system of agrarian injustice. Jesus did the same, Mohammed and the Quran do the same. Sometimes, religion permeates the violence of the state, but it also offers the consistent critique of that structural and martial violence.

Is it possible to disentangle that critiquing role from the role of supporting state structures?

I think in the West we have peeled them apart. We’ve separated religion and politics, and this was a great innovation. But so deeply embedded in our consciousness is the desire to give our lives some meaning and significance that no sooner did we do this than we infused the new nation-state with a sort of quasi-religious fervor. If you regard the sacred as something for which we are willing to give our lives, in some senses the nation has replaced God, because it’s now not acceptable to die for religion, but it is admirable to die for your country.

Certainly in the United States, your national feeling, whether people believe in God or not, has a great spiritual or transcendent relevance — “God bless America,” for example; the hand on the heart, the whole ethos. We do the same in the U.K. with our royal weddings. Even in our royal weddings, the aristocracy are all in military uniform.

Ah, that’s a great observation.

In your great parades, you know, when a president dies, there’s the army there.

The religiously articulated state would persecute heretics. They were usually protesting against the social order rather than arguing about theology, and they were seen as a danger to the social order that had to be eliminated. That’s been replaced. Now we persecute our ethnic minorities or fail to give them the same rights.

I’d like to go deeper into this comparison between nationalism and religion. Some people would say that the ultimate problem, here, is a strain of irrationality in our society. They would argue that we need to purge this irrationality wherever we see it, whether it appears in the form of religion or nationalism. How would you respond?

I’m glad you brought that up, because nationalism is hardly rational. But you know, we need mythology in our lives, because that’s what we are. I agree, we should be as rational as we possibly can, especially when we’re dealing with the fates of our own populations and the fates of other peoples. But we don’t, ever. There are always the stories, the myths we tell ourselves, that enable us to inject some kind of ultimate significance, however hard we try to be rational.

Communism was said to be a more rational way to organize a society, and yet it was based on a complete myth that became psychotic. Similarly, the French revolutionaries were imbued with the spirit of the Enlightenment and erected the goddess of reason on the altar of Notre Dame. But in that same year they started the Reign of Terror, where they publicly beheaded 17,000 men, women and children.

We’re haunted by terrible fears and paranoias. We’re frightened beings. When people are afraid, fear takes over and brings out all kind of irrationality. So, yes, we’re constantly striving to be rational, but we’re not wholly rational beings. Purging isn’t an answer, I think. When you say “purging,” I have visions of some of the catastrophes of the 20th century in which we tried to purge people, and I don’t like that kind of language.

Let’s try a different analogy: Perhaps our search for narrative and meaning is a bit like a fire. It can go out of control and burn people pretty badly. Seeing this destruction, some people say we should just put out the fire whenever we can. There are others who argue that the fire will always be there, that it has benefits, and that we need to work with it to the best of our abilities. And you’re sort of in the latter camp, yes?

I would say so … If we lack meaning, if we fail to find meaning in our lives, we could fall very easily into despair. One of the forensic psychiatrists who have interviewed about 500 people involved in the 9/11 atrocity, and those lone-wolves like the Boston Marathon people, has found that one of the principal causes for their turning to these actions was a sense of lack of meaning; a sense of meaningless and purposelessness and hopelessness in their lives. I think lack of meaning is a dangerous thing in society.

There’s been a very strong void in modern culture, despite our magnificent achievements. We’ve seen the nihilism of the suicide bomber, for example. A sense of going into a void.

In “Fields of Blood,” you explore how the material needs of people can give rise to more abstract ideas. So, speaking about nihilism as something particular to the modern era: Are there political or social conditions that underlie this sense of meaninglessness?

Yes. The suicide bomber has been analyzed by Robert Pape of the University of Chicago, who has made a study of every single suicide bombing from 1980 to 2004. He has found that it’s always a response to the invasion of the homeland by a militarily superior power. People feel their space is invaded, and they resort to this kind of action because they can’t compete with the invaders. [Suicide bombing] was a ploy [first] used by the Tamil Tigers, who had no time for religion. Of the many Lebanese bombings [in the 1980s], only seven of them were committed by Muslims, three by Christians. The rest, some 17 or so, were committed by secularists and socialists coming in from Syria.

I think a sense of hopelessness is particularly evident in the suicide bombings of Hamas, where these young people live in refugee camps in Gaza, with really very little hope or very little to look forward to. People who talk to survivors of these actions found that the desire to die a heroic death, to go out in a blaze of glory and at least have some meaning in their lives and be venerated and remembered after their death, was the driving factor.

There’s a line in your book that struck me: “Terrorism is fundamentally and inherently political, even when other motives, religious, economic, and social, are involved. Terrorism is always about power.”

I think I’m quoting some terrorist specialist there.

Even when [terrorists] claim to be doing it for Allah, they’re also doing it for political motives. It’s very clear in bin Laden’s discourse. He talks about God and Allah and Islam and the infidels and all that, but he had very clear political aims and attitudes towards Saudi Arabia, towards Western involvement in Middle Eastern affairs. The way he talked always about Zionists and crusaders rather than Jews and Christians — these are political terms. Since the early 20th century the term “crusade” has come to stand for Western imperialism.

In the Hamas martyr videos, the young martyr will segue very easily from mentioning Allah the Lord of the world, and then within a couple of words he’s talking about the liberation of Palestine — it’s pure nationalism — and then he’s into a third-world ideology, saying his death will be a beacon of hope to all the oppressed people who are suffering at the hands of the Western world. These things are mixed up in that cocktail in his mind, but there’s always a strong political element, not just a going towards God.

In fact, all our motivation is always mixed. As a young nun, I spent years trying to do everything purely for God, and it’s just not possible. Our self-interest and other motivations constantly flood our most idealistic efforts. So, yes, terrorism is always about power — wanting to get power, or destroy the current power-holders, or pull down the edifices of power which they feel to be oppressive or corruptive in some way.

How direct is the link between colonial policies in the Middle East and a terrorist attack in New York or London?

I think — and I speak as a British person — when I saw the towers fall on September 11, one of the many, many thoughts that went through my head was, “We helped to do this.” The way we split up these states, created these nation-states that ISIS is pulling asunder, showed absolutely no regard for the people concerned. Nationalism was completely alien to the region; they had no understanding of it. The borders were cobbled together with astonishing insouciance and self-interest on the part of the British.

Plus, a major cause of unrest and alienation has always been humiliation. Islam was, before the colonial period, the great world power, rather like the United States today. It was reduced overnight to a dependent bloc and treated by the colonialists with frank disdain. That humiliation has rankled, and it would rankle, I think, here in the States. Supposing in a few decades you are demoted by China, it may not be so pretty here.

Every fundamentalist movement that I’ve studied, in Judaism, Christianity and Islam, is rooted in a profound fear of annihilation.

So, when we in the West talk about religion as the cause of this violence, how much are we letting ourselves off the hook, and using religion as a way to ignore our role in the roots of this violence?

We’re in danger of making a scapegoat of things, and not looking at our own part in this. When we look at these states and say, “Why can’t they get their act together? Why can’t they see that secularism is the better way? Why are they so in thrall to this benighted religion of theirs? What savages they are,” and so on, we’ve forgotten to see our implication in their histories.

We came to modernity under our own steam. It was our creation. It had two characteristics. One of these was independence — your Declaration of Independence is a typical modernizing document. And you have thinkers and scientists demanding free thought and independent thinking. This was essential to our modernity. But in the Middle East, in the colonized countries, modernity was a colonial subjection, not independence.

Without a sense of independence and a driving force for innovation, however many skyscrapers and fighter jets you may possess, and computers and technological gadgets, without these qualities you don’t really have the modern spirit. That modern spirit is almost impossible to acquire in countries where modernity has been imposed from outside.

When you hear, for example, Sam Harris and Bill Maher recently arguing that there’s something inherently violent about Islam — Sam Harris said something like “Islam is the motherlode of bad ideas” — when you hear something like that, how do you respond?

It fills me with despair, because this is the sort of talk that led to the concentration camps in Europe. This is the kind of thing people were saying about Jews in the 1930s and ’40s in Europe.

This is how I got into this, not because I’m dying to apologize, as you say, for religion, or because I’m filled with love and sympathy and kindness for all beings including Muslims — no. I’m filled with a sense of dread. We pride ourselves so much on our fairness and our toleration, and yet we’ve been guilty of great wrongs. Germany was one of the most cultivated countries in Europe; it was one of the leading players in the Enlightenment, and yet we discovered that a concentration camp can exist within the same vicinity as a university.

There has always been this hard edge in modernity. John Locke, apostle of toleration, said the liberal state could under no circumstances tolerate the presence of either Catholics or Muslims. Locke also said that a master had absolute and despotical power over a slave, which included the right to kill him at any time.

That was the attitude that we British and French colonists took to the colonies, that these people didn’t have the same rights as us. I hear that same disdain in Sam Harris, and it fills me with a sense of dread and despair.

Is Islamophobia today comparable to anti-Semitism?

Let’s hope not. It’s deeply enshrined in Western culture. It goes right back to the Crusades, and the two victims of the crusaders were the Jews in Europe and the Muslims in the Middle East.

Right, because Jews along the crusaders’ routes would be massacred —

They became associated in the European mind. We’ve recoiled, quite rightly, from our anti-Semitism, but we still have not recoiled from our Islamophobia. That has remained. It’s also very easy to hate people we’ve wronged. If you wrong somebody there’s a huge sense of resentment and distress. That is there, and that is part of it, too.

I remember speaking at NATO once, and a German high officer of NATO got up and spoke of the Turks resident in Germany, the migrant workers who do the work, basically, that Germans don’t want to do. He said, “Look, I don’t want to see these people. They must eat in their own restaurants. I don’t want to see them, they must disappear. I don’t want to see them in the streets in their distinctive dress, I don’t want to seem their special restaurants, I don’t want to see them.” I said, “Look, after what happened in Germany in the 1930s, we cannot talk like that, as Europeans, about people disappearing.”

Similarly, a Dutch person got up and said, “This is my culture, and these migrants are destroying and undermining our cultural achievements.” I said, “Now you, as the Netherlands, a former imperial power, are beginning to get a pinprick of the pain that happened when we went into these countries and changed them forever. They’re with us now because we went to them first; this is just the next stage of colonization. We made those countries impossible to live in, so here they are now with us.”

How should one respond to something like the treatment of women in Saudi Arabia, or the threat of terrorism that originates in Muslim countries?

Saudi Arabia is a real problem, there’s no doubt about it. It has been really responsible, by using its massive petrol dollars, for exporting its extraordinarily maverick and narrow form of Islam all over the world. Saudis are not themselves extremists, but the narrowness of their religious views are antithetical to the traditional pluralism of Islam.

We’ve turned a blind eye to what the Saudis do because of oil, and because we see them as a loyal ally, and because, during the Cold War, we approved of their stance against Soviet influence in the Middle East.

Fundamentalism represents a rebellion against modernity, and one of the hallmarks of modernity has been the liberation of women. There’s nothing in the Quran to justify either the veiling or the seclusion of women. The Quran gave women rights of inheritance and divorce, legal rights we didn’t have in the West until the 19th century.

That’s what I feel about the treatment of women in Saudi Arabia. It’s iniquitous, and it’s certainly not Quranic.

Where do you, as someone outside of a tradition, get the authority to say what is or isn’t Quranic?

I talk to imams and Muslims who are in the traditions.

I think it’s easy to say, “Well the text isn’t binding” when you see something in there that you don’t like. But when you see something in the text that you do want to uphold, it’s tempting to go, “Oh, look, it’s in the text.”

Oh, it is. We do it with all our foundation texts — you’re always arguing about the Constitution, for example. It’s what we do. Previously, before the modern period, the Quran was never read in isolation. It was always read from the viewpoint of a long tradition of complicated, medieval exegesis which actually reined in simplistic interpretation. That doesn’t apply to these freelancers who read “Islam for Dummies” …

– and then do with it what they will.

Yes.