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.

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Star of wonder and beyond

From the Christmas star, humankind has been fascinated by astronomical possibilities.

Andrew Davison

Andrew works at the intersection of theology, science and philosophy. He is Canon and Regius Professor of Divinity at Christ Church, Oxford.

Tarantula Nebula, by the James Webb Space Telescope.

NASA, via Wikimedia Commons.

The James Webb Space Telescope was launched on Christmas Day 2021. After hair-raising maneuvers to unfurl its tennis-court-sized mirrors, it has been sending back breathtaking images of the cosmos since July of last year.

Christmas was a good day for the launch, given its astronomical connections. ‘Glory to God in the highest heaven’, the angels sang to the shepherds, ‘and peace to his people on Earth.’ Meanwhile, the wise men were above all diligent observers of the heavens. ‘Where is the child who has been born king of the Jews?’, they ask, ‘For we observed his start at its rising, and have come to pay him homage.’

Quite what that ‘star’ might mean there is open to debate. Comets have been popular with artists. Giotto painted one, for instance, in his Adoration of the Magi in the Scrovegni Chapel in Padua. It is almost certainly Halley’s Comet, which had appeared just a few years before, in October 1301. But why would anything in the heavens be interpreted as a birth in Judea? It would probably involve something in a constellation associated with the nation of the Hebrews. Pisces seems to be favoured, for some reason. A nova of some kind is one possibility: what would look like a temporary new star because, in fact, a previously invisible star was undergoing a spectacular death. Chinese records suggest a nova in 5 BC, which fits the likely date for for Christ’s birth of 7–2 BC.

The problem with both comets and novae is that they were more likely seen as harbingers of doom than good news. The better candidate for suggesting something joyful is a planetary conjunction, and there would have been a rather spectacular conjunction of Jupiter, Saturn, and Mars at the right time. None of that, admittedly, explains what it means for the star then to have led the wise men. Coming up against that challenge, we might think that looking into the astronomical detail is the wrong way to approach the story. Nonetheless, Matthew had something in mind when he wrote about a start in his gospel, and it’s worthwhile to ask what that might have been.

It might be fitting for God to deal with other species as intimately as God has dealt with us, so that they might see ‘God made visible’ in their own nature, as we see God made visible in ours.

More recently, the Christmas story has intersected with astronomy in questions about how to think about Christian theology now that we are aware quite how big the universe is, especially if it may contain a great deal of other life. We don’t know whether that’s true, of course, but given we now know that planets common around stars, and there are billions of billions of stars in the universe, the probabilities seem to tilt towards other life, at least as I see it.

Suggestions surfaces from time to time that the world’s religions have arrived late to the party, when it comes to thinking about life beyond Earth. The astronomer and broadcaster Carl Sagan made that claim, for instance, in his best-selling book Pale Blue Dot. In fact, the earliest discussions of life beyond Earth I know about from Christian writers come from the mid-fifteenth century (and they stretch even further back in Judaism and Islam, to give two other examples). Christian writers have written on the subject ever since. If few gave us more than a paragraph here or a page there, that’s usually because the prospect of other life did not worry them enough to warrant more. They noted the prospect cheerfully, and moved on.

Until the twentieth century, the prospect of parallel Nativities on other planets was rarely in view. In a sense, it didn’t need to be. It’s a consistent Christian position to say that God joined his life to all creation in joining it to one species of rational animal on Earth, just as God joined his life to all humanity in being born in a stable, in a wayside town, in a backwater province of the Roman Empire.

One erudite early exploration of multiple Incarnations comes in a poem from the 1920s by the Roman Catholic poet Alice Meynell, entitled ‘Christ in the Universe’. More recently, Meynell’s topic has become perhaps the central theme in thinking theologically about life beyond Earth. My own book (Astrobiology and Christian Doctrine, 2023) looks at the prospect of life beyond Earth from the perspective of all of central topics in Christian doctrine (creation, sin, redemption, revelation, the Trinity, and so on), but the largest section is on Christmas and possible parallels. I am sympathetic to the idea that God would also unite himself to another natures, alongside the human nature he took up in Christ: not because I think that would be necessary, but because it might be fitting. It might be fitting for God to deal with other species as intimately as God has dealt with us, so that they might see ‘God made visible’ in their own nature, as we see God made visible in ours.

Hiding in plain sight in the Nativity stories is another key to Christian thinking about life beyond, namely the angels. It’s not that I think that angels are aliens, or that alien life is angelic. In fact, being a disciple of St Thomas Aquinas, I’m inclined to view angels as entirely immaterial, and so very much not examples of biological life. But angels are useful for thinking about other biological life beyond Earth nonetheless, because of what they mean for the Christian imagination. The angels show that there’s always been space in that imagination for rational creatures other than human beings. They show that Christianity has never imagined that we’re the sole object of God’s love, or even the most glorious of species.

The Christmas story has its cosmic elements: the star, glory in the highest heavens, and the angels, reminding us that wonderful though humanity is, it has no monopoly on rational life. My hunch, as much as my hunch matters, is that if there is other life then they too may see God face-to-face in their own Incarnation. Even if we find evidence of life beyond Earth, however, it’s not going give us much detail. The balance of gases in the atmosphere of a planet around another star might indicate life, but not much else about it. The prospects for interplanetary comparative religion are far off indeed. Alice Meynell had the right idea, when she recognised that one of the joys of the life of the world to come will be learning the stories of God’s dealings elsewhere:

But in the eternities,

Doubtless we shall compare together, hear

A million alien Gospels, in what guise

He trod the Pleiades, the Lyre, the Bear.

O, be prepared, my soul!

To read the inconceivable, to scan

The myriad forms of God those stars unroll

When, in our turn, we show to them a Man.

Alice Meynell