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Understanding the power of blood

From hospitals to hymn books, it's significant for a reason.

Helen is a registered nurse and freelance writer, writing for audiences ranging from the general public to practitioners and scientists.

A bag of blood connected to a drip.
Give blood.
Aman Chaturvedi on Unsplash.

With one billion molecules of oxygen packed into each of your 30 trillion red blood cells, blood is sometimes known as the red river of life. Countless lives have been saved through blood transfusion, but why, throughout history, across continents and cultures, has there been a special interest in the blood of one man crucified 2,000 years ago, believing it alone to have “wonder-working power”?  

Whether you are a newborn baby with half a pint of blood, or an adult with nearer nine pints, “what is certain is that you are suffused with the stuff”, writes author Bill Bryson in his book, The Body.  

Once thought to ebb and flow in waves like the sea, from the liver to other organs, having been heated in the heart, blood in fact flows in a network of vessels measuring some 60,000 miles, with the heart acting as pump, not heater. Cleverly conserved through a complex system of blood-clotting in the case of injury, blood is a precious resource that needs replacing if lost in large amounts. Victims of road traffic accidents can require up to fifty units of blood; significant amounts are needed for organ transplantation, severe burns or heart surgery. 

The first human blood transfusion in Britain, using blood from a lamb, was performed by Dr Richard Lower in 1667, given not to replace blood loss but to change character: could the old be made young, the shy be made sociable through blood transfusion? Apparently not.  

Safe transfusion awaited the discovery of blood types by Dr Karl Landsteiner in the early 20th century. Today, NHS Blood and Transplant deliver 1.4 million units of red cells to 260 hospitals each year for transfusion; about 85 million units are transfused worldwide, given to replace blood loss after accident, surgery, ulcer, ectopic pregnancy or for anaemia in cancer. Also used to boost blood cell numbers in malaria, sepsis, HIV, leukaemia and sickle cell anaemia, blood transfusion is now amazingly safe. Fatal reactions are extremely rare, “occurring only in one out of nearly two million transfusions”, writes physician Dr Seth Lotterman. “For comparison, the lifetime odds of dying from a lightning strike are about 1 in 161,000,” he adds. The risk of HIV infection has dropped dramatically, to less than one in seven million. 

History tells though of the danger of transmitting disease from the blood donor during transfusion. The World Health Organization recognises risk of infection with HIV, hepatitis, syphilis, malaria, and Chagas disease. The Contaminated Blood Scandal saw an estimated 30,000 people in the UK given blood transfusions and blood products infected with hepatitis C, hepatitis B and HIV. More than 3,000 people died as a result, and thousands more live with on-going health complications. For my final Christmas article for Readers Digest, I wrote on Stephen Christmas, a tireless campaigner for blood safety who lived with haemophilia and died in 1993, having contracted HIV through contaminated blood. 

I was a blood donor. However, I am now unable to donate blood or organs for the rest of my life since there is a possibility that my blood is ‘stained’, possibly with prion disease, after adopting embryos. The Blood Transfusion Service will not accept donations from women who have had various fertility treatments. 

And there’s another uncomfortable truth about blood donation – the NHS does not have enough blood, organs, tissues, platelets, plasma or stem cells to treat everyone who needs it. As a nurse, I remember caring for a man dying of liver cancer. Suffering from sudden, massive melaena (blood loss in black, tarry stools as a result of internal bleeding), he received emergency blood transfusion, with bag after bag of blood being infused, until the consultant called for the treatment to stop, because the bleed was too big – and blood supplies too scarce.  

Struggling to accept the stark reality of stained blood and dangerous shortages, I kept coming back to an old Sunday School song about blood, where absolute abundance and ultimate cleansing are instead promised. 

There is a fountain filled with blood 
   Drawn from Immanuel’s veins; 
And sinners, plunged beneath that flood, 
   Lose all their guilty stains. 

Gruesome and graphic in its imagery, but full of deeper meaning. And as a nurse, I’m accustomed to blood, sometimes lots of it. I’ve seen that man bleed out on the ward that night; I’ve attended a road accident, where a boy lost his leg – but not his life, because towels stemmed the massive flow of blood. I’ve raced a patient to the operating theatre after her aortic aneurysm burst within; I’ve stemmed arterial bleeding from the groin by applying prolonged pressure to the site punctured by a catheter during cardiac stenting. According to the World Health Organization, severe bleeding after childbirth is the leading cause of maternal mortality world-wide. Each year, about 14 million women experience postpartum haemorrhage resulting in about 70,000 maternal deaths globally.  

In the Bible, and in hymns of praise like this one, there is also no getting away from blood. “Like it or not, the Bible is a bloody book,” writes  Kyle Winkler. It runs through the book like a crimson thread. There’s a story of a woman bleeding for twelve years, until she touched the hem of Jesus’ garment and was healed.    

Elsewhere the Bible keeps returning to the idea of blood, shed in sacrifice, used to cleanse, save, and heal in a spiritual sense. In the Old Testament, animal blood was painted on doorposts at Passover as a sign of protection from judgment, and sprinkled ritually on the altar as a sacrifice for human sin, restoring relationship with God.  

On Good Friday, Jesus himself shed (and sweat) his blood, sacrificing his life on the cross to “wash our souls” once and for all. Millions of Christians across the world take a sip of communion wine each Sunday in commemoration of this act. It’s a beautiful gift, coming with a promise that the shed blood will “preserve thy body and soul unto everlasting life”, through the forgiveness of sins. It’s no wonder then that churches love to sing about this blood. “Would you be free from the burden of sin? There's pow'r in the blood, pow'r in the blood,” goes one hymn, while another simply says, “Your blood has washed away my sin, Jesus, thank you”.  

“God’s intention for blood isn’t gory—it’s beautiful! And I’m certainly not offended or scared by it,” writes Kyle. “Rather than question how little blood I can get by with, I’d rather stand under the cross to be covered in all that I can get!” Thank God for the fountain of forgiveness that flows from Good Friday. 

  

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How to navigate a culture war

Blaise Pascal shows us what really underlies our contemporary battles.

Graham is the Director of the Centre for Cultural Witness and a former Bishop of Kensington.

Two goats lock horns.
Maxime Gilbert on Unsplash.

We often say these days that we are more polarised as a society than ever before. But we're wrong. Maybe the USA is experiencing a particularly sharp divide right now, but they have had their own, much more violent troubles in the past. And in Europe, and especially in Britain, we know a fair bit about culture wars that were literally that – wars.  

In the 17th century, we English had our own civil war where we literally killed each other over religion and politics. We even killed a king. The French did something similar and even more vicious just over 100 years later. That is real polarisation. However spiteful Twitter/X arguments may get, I don't think Charles III or even Kier Starmer is quaking in their beds expecting to be put on trial for treason.  

So maybe our history has something to teach us about how we navigate culture wars.  

The literary critic Terry Eagleton once wrote of our age:  

“the world is accordingly divided between those who believe too much and those who believe too little. While some lack all conviction, others are full of passionate intensity.” 

 We tend to think our contemporary divide between left and right, progressives and conservatives is something new. But we can find echoes of this in previous times.  

A case in point was the mid-17th century – the time of many other upheavals in Europe. Part of the febrile atmosphere of the time saw fierce arguments between rationalists and sceptics.  

There were at the time, two broad strands of thinking about the human condition. On the one had there were the ‘Dogmatists’ who were sure that they knew everything through use of reason or the application of philosophical or scientific method (like René Descartes). On the other hand, there were the ‘Sceptics’ who thought everything was random, or custom, and there is no final Truth to be found (like a figure from the century before – Michel de Montaigne). 

Of course, our own time has its fair share of people with an overwhelming confidence in the power of human knowledge, and the physical sciences in particular, to unlock the secrets of life, the universe and everything. The ‘new atheist’ project of Richard Dawkins and friends was hugely confident in reason and its capacity to tell us all we need to know, dispatching religion to the dustbin of history and instead placing an unshakable faith in the empirical methods of science. It had - and has - definite similarities with this picture of human knowledge.  

Yet on the other hand we also have, in the progressive postmodern project, those who reject any kind of underlying rationality or sacred order either above us or beneath us. For them, there is no underlying Truth to be discovered, and they delight in revealing the instability and illusory nature of any claim to truth. It sounds very much like the culture wars of our time. 

One enigmatic 17th century figure charted a way through this dilemma - Blaise Pascal. When he looked at his century’s culture war, he thought both sides had a point. There is, he observed… 

…open war between men in which everyone is obliged to take sides, either with the dogmatists or with the sceptics, because anyone who imagines he can stay neutral is a sceptic par excellence…. Who will unravel such a tangle? This is certainly beyond dogmatism and scepticism, beyond all human philosophy. Humanity transcends humanity. Let us then concede to the sceptics what they have so often proclaimed that truth lies beyond our scope and is an unattainable quarry, that it is no earthly denizen, but at home in heaven lying in the lap of God, to be known only insofar as it pleases him to reveal it. 

So far, he says, the sceptics, like Montaigne, are right. Truth is beyond our grasp, it does not reside here on earth, openly obvious and ready to be found. If it exists, it exists in some world above us, beyond our reach. How do we even know if we are asleep or awake, given that when we dream, we are as convinced that we are awake as we are when we are truly awake?  

And so, modern progressives, looking to dismantle the assumed results of previous understanding, due to its inherent colonial, patriarchal or abusive past, delight in showing how random and arbitrary is so much of what we take for granted from the past. And, Pascal would add, they have a point. Many of our legal, political and cultural assumptions are purely cultural and arbitrary, and sometimes simply serve to the advantage of the rich and powerful rather than the poor and marginalised. 

Yet on the other side, the ‘dogmatists’, like Descartes, have their strong point, which is that we cannot doubt natural principles. The acids of deconstruction can only take you so far. The most sceptical philosopher still puts the kettle on assuming that it will boil to make a cup of tea. She gets up in the morning assuming that the sun will rise and set again at the end of the day. Despite the corrosive effects of scepticism, Pascal wrote,  

“I maintain that a perfectly genuine sceptic has never existed. Nature backs up helpless reason and stops it going so wildly astray.”  

Despite all our doubt, we still live in a world with order and predictability. Scepticism keeps bumping up against reality.   

So, modern conservatives point to a deeper ‘givenness’ to things, an order within the natural world that we did not create, and yet, mysteriously, seems to be prearranged before we got here. Scientific exploration does make sense. There is a regularity to nature that we can, indeed have to, depend on. Sexual differences exist and can’t be ignored. We are not entirely free to override the natural order of things - there is a deeper rhythm to nature and its capacity for renewal that we only mess with at our peril, as climate change has taught us. As a result, the age-old battle between rationalists and sceptics, progressives and conservatives, will never find resolution, as the arguments flow back and forth.  

Christian faith includes both progressive and conservative impulses. It can make sense of both of them. Christians are aware of the brokenness of the world and therefore long to see it changed. The progressive impatience with the way things are, and the yearning for a better world has its roots in Christian faith.

Yet at the same time, Christianity discerns a divinely created order to the world, a rhythm to the natural world, that cannot be broken and needs to be respected. Therefore, an inherent conservatism is part of Christian faith as well. In other words, the Christian story can explain both and offer a bigger picture than either.  

For Pascal, Christianity offers a diagnosis for this mystery of the human condition, the complex mix of grandeur and misery, infinity and nothing, sceptic and rationalist, in the simple, yet endlessly generative idea that we humans are gloriously created, deeply fallen and yet offered redemption through Jesus Christ. Our sadness is heroic and tragic. In Pascal’s suggestive image, it is “the wretchedness of a great Lord, the wretchedness of a dispossessed king.” 

“We show our greatness,” says Pascal, “not by being at one extreme, but by touching both at once and occupying all the space in between.” For him, the very existence of such culture wars points to the truth of the Christian diagnosis of the human condition. 

Pascal offers us a way between the Scylla of Progressivism and the Charybdis of Conservatism – or perhaps better, to embrace the best of both. Culture wars are tricky to navigate. Yet they might find resolution if we allow them to point us to a deeper reality - our strange mixture of greatness and sadness. And not losing sight of either side of this enduring truth.  

 

Graham Tomlin is the author of Blaise Pascal: The Man Who Made the Modern World  (Hodder) £25.  

Watch Graham explain why he is fascinated by Pascal.

Celebrate our 2nd birthday!

Since March 2023, our readers have enjoyed over 1,000 articles. All for free. This is made possible through the generosity of our amazing community of supporters.
If you’re enjoying Seen & Unseen, would you consider making a gift towards our work?
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