Understand what we thirst for

Whether for water or meaning, it’s a primal force.

Helen Cowan

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

A child wearing a wool hat holds a glass and drink water from it.

Johnny McClung on Unsplash

Quenching thirst is a global problem. It can also be profoundly personal, impaired by illness. For nurses, it can be ethically and emotionally difficult, when treating dying patients. But is there ultimate relief?

Thirst is the subjective sensation of a desire to drink something that cannot be ignored. The world is thirsty; globally, 703 million people lack access to clean water. That’s 1 in 10 people on the planet.

Thirst is a life-saving warning system that tells your body to seek satisfaction through swallowing fluid. It works in partnership with other body processes - such as changes in blood pressure, heart rate and kidney function - to restore fluid, and salt, levels back to where they belong. Failure of any part of this beautifully balanced system leads to dehydration (or water intoxication), and perhaps to seizures, swelling of the brain, kidney failure, shock, coma and even death.

Sometimes it’s difficult to quench thirst, because of problems with supply. According to the World Health Organization, at least 1.7 billion people used a drinking water source contaminated with faeces in 2022. Sometimes in war, water is weaponised, with systematic destruction of water sources and pipes. Water laced with rat fur, arsenic and copper has meanwhile been reported in prisons across the USA.

At other times, there may be “water everywhere, but not a drop to drink” because of individual problems with swallowing. As a nurse, some of my most heartbreaking moments have been when I have been unable to fulfil a need as basic as a patient’s thirst; when even thickened fluids have led to intense coughing and distress, and a realisation that I can only moisten mouths and give so-called “taste for pleasure”: very small amounts of a favourite liquid or taste using a soft toothbrush, or a circular brush gently sweeping around the mouth and lips to release some of the liquid - even, and especially, at the end of life when the patient is unconscious.

Difficulties in drinking are common in dementia when fluid can seem foreign and swallowing a surprise to the system. It’s thought that over 50 per cent of people in care homes have an impaired ability to eat or drink safely; 30 to 60 per cent of people who have had a stroke and 50 per cent of those living with Parkinson’s may struggle to swallow.

Other conditions that may affect swallowing include multiple sclerosis, cerebral palsy, and head and neck cancers. Diabetes is characterised by a raging thirst owing to problems with insulin (diabetes mellitus) or an imbalance in antidiuretic hormone levels (diabetes insipidus). In intensive care, patients are predisposed to thirst through mechanical ventilation, receiving nothing by mouth, and as a side effect of some medications. But thirst is a “neglected area” in healthcare, writes palliative care researcher Dr Maria Friedrichsen.

“Knowledge of thirst and thirst relief are not expressed, seldom discussed, there are no policy documents nor is thirst documented in the patient’s record. There is a need for nurses to take the lead in changing nursing practice regarding thirst.”

Is there another thirst that is also being missed in nursing, and in life in general – a spiritual thirst, beyond the physical desire to drink? In his book, Living in Wonder, writer Rod Dreher argues that humans are made to be spiritual, and that a critical sixth sense has been lost in a “society so hooked on science and reason”. We humans crave love in our deepest selves; we have an insatiable thirst for everything which lies within – and beyond – ourselves. Auschwitz survivor Viktor Frankl, who was later appointed professor of psychiatry at the University of Vienna, became convinced that human beings have a basic “will for meaning.” “The striving to find a meaning in one’s life,” he wrote, “is the primary motivational force in man.”

In the harsh sun of a Middle East day, an ancient story of a man and a woman encountering each other at a water well illustrates this dual thirst for water and meaning. The man, Jesus, thankful for a drink of water given to him at the well by an outcast Samaritan woman, said that “Everyone who drinks this water will be thirsty again, but whoever drinks the water I give them will never thirst. Indeed, the water I give them will become in them a spring of water welling up to eternal life.” In that midday sun, such imagery made a powerful statement.

Being mindful of spiritual thirst when drinking water is something also captured in a Ghanaian proverb and pictured perfectly in the many birds that drink by gravity, so tipping their heads back when they swallow.

“Even the chicken, when it drinks,

Lifts its head to heaven to thank God for the water”.

Unsatisfied thirst is part of the human condition, we long for something more; it’s living proof of our immortality, says French poet Charles Baudelaire. Despite his Olympic success, athlete Adam Peaty said that society didn’t have the answers he was seeking, and that a gold medal was the coldest thing to wear. He “discovered something that was missing” when attending church for the first time, and now has a cross with the words “Into the Light” tattooed across his abdomen, symbolizing his spiritual awakening. We are more than mechanical machines with physical needs. We are rather gardens to tend in a dry and thirsty land, with souls in need of intensive care.

Explainer

Belief

Creed

30 March 2023

4 min read

Beyond cold certainties

The Creeds set out a vision of reality – a vision that cannot be proved to be true, but which was found to be true by a community of people.

Alister McGrath

Alister McGrath retired as Andreas Idreos Professor of Science and Religion at Oxford University in 2022.

A red shutter door bears a large painted message reading 'io ci credo'

'I believe it.'

Paolo Gregotti on Unsplash.

“I believe.” For many, the opening words of the Christian Creeds are self-defeating. Why read any further, when all they offer is opinions, rather than certainties? Faith is just a lower form of knowledge – a kind of hesitant half-truth, which seems out of place in today’s more sophisticated world, informed by science and philosophy rather than outdated worldviews inherited from a credulous past.

It’s a fair point. We cannot believe anything we like; there has to be reason to believe it, evidence in its support. For those wedded to a hard rationalism, we can only believe what can be proved to be true. Yet the problem is that the secure truths of logic and mathematics are existentially inadequate. We seem unable to escape the lure of “ultimate questions”, to use Karl Popper’s term for truths about meaning and value in life that frustratingly lie beyond the scope of science to confirm.

We can prove shallow truths. Yet the truths that really matter to us seem to lie beyond rational confirmation.

When it comes to the really important things in life, we are confronted with a rationalist dilemma. We can prove shallow truths. Yet the truths that really matter to us seem to lie beyond rational confirmation, often leading us into vicious argumentative circles rather than offering clear and persuasive proof. Bertrand Russell made this point in his famous defence of philosophy: “To teach how to live without certainty, and yet without being paralyzed by hesitation, is perhaps the chief thing that philosophy, in our age, can still do for those who study it.”

Albert Einstein was fond of using mental experiments to open up some fundamental scientific questions, finding that they combined imaginative reflection with rational analysis. Here is a useful mental experiment. Suppose we limit ourselves to a mental and imaginative world in which we only accept what can be proved to be true. What sort of world would that be? It would, obviously, be a world from which Christianity was absent. Yet, perhaps less obviously, it would be a world from which all beliefs – moral, political, social and religious – are excluded. It would be a world without moral values, which remain obstinately resistant to rational or scientific verification. My suggestion is that this mental experiment indicates that this world would be existentially, morally and personally uninhabitable.

The human quest for wisdom, goodness and meaning takes us beyond the cold certainties of logic.

The opening words of the Creeds need to be seen in this context. The human quest for wisdom, goodness and meaning takes us beyond the cold certainties of logic into a world in which we believe or trust certain things to be true, life-changing and live-giving – but cannot prove them to be true. The Latin word credo – traditionally translated into English as “I believe” – is better rendered as “I trust,” invoking the world of relationships rather than mere beliefs.

The Creeds set out a vision of reality – a vision that cannot be proved to be true, but which was found to be true by a community of people, who have passed down in the Creeds their collective witness to what they discovered. As C. S. Lewis remarked, “the one really adequate instrument for learning about God is the Christian community.” This vision is affirmed to be trustworthy – not merely something that is transformative and liberating, but something that can be lived, not merely thought.

Getting the bigger picture

Faith is thus not a half-hearted hope that there might be a God. For Christians, it is a broad recognition that we live in a world in which certainty is not possible, save in closed mental domains that have little relevance to the serious business of living well and authentically. It is about “getting” what things are all about in an epiphanic moment of putting everything together and seeing a bigger picture within which we realize we belong and can flourish. There are other big pictures, of course – but all of them lie beyond proof. In choosing any of these, we are making an informed judgement that goes beyond the available evidence. We may believe (and have good reasons to believe) that it is the best big picture; yet we cannot show that it is true. What we do know, however, is that others have grasped this vision in the past, and transmitted this way of thinking and living to us.

‘Decentring’

The Creeds are thus not a demand to believe, but a description of what has been found, an affirmation of its capacity to satisfy and sustain, and an invitation to explore, discover and inhabit this new world. The Creeds provoke us into looking beyond the world of familiar banalities, and being prepared to be receptive to strange truths, which others have found to be life-changing. The vision of reality that we find articulated in the Creeds might be described as “decentring” – a term used by Iris Murdoch to describe the process of breaking free from our worrying obsession to make everything focus on us. As Plato suggested in his famous analogy of the Cave, there is a greater world that lies beyond us which, once grasped, makes us see things in a very different way. For Christians, faith is about the discernment of this vision of reality, and deciding to act as if it were true, in the firm belief that it can be trusted – and living meaningfully and authentically as a result.