Article

Awe and wonder

Comment

7 September 2023

6 min read

The heart of the matter

Heart doctor Michael Henein steps back to consider the unseen and unique wonders of the human body’s design.

Michael Henein

Professor Michael Henein is a consultant cardiologist, and a Professor of Cardiology at Umea University, Sweden.

A model of a human heart on a short stand.

Photo by Jesse Orrico on Unsplash.

Shakespeare famously asked:

“What a piece of work is a man, how noble in reason, how
infinite in faculties, in form and moving how express and admirable, in action how like an angel, in apprehension how like a god! the beauty of the world, the paragon of animals—and yet, to me, what is this quintessence of dust?

Humans may be complex, capable of great heroism and deep depravity, yet it is worth stopping for a moment to look at the human body and mind to marvel in what we have become, and how we are made.

The visible design of the human body points out common features shared along with other members of the animal kingdom. Examples of these features are: two eyes, two ears, two nostrils, one mouth and four limbs, attached to a body and head. Detailed study of different seen parts of the body may, however, show some differences. For example, the presence of fingers and nails, hair distribution as well as a developed tail. While most members of the animal kingdom have teeth and a tongue, those two could also vary in their number and size, respectively, according to different species. Genetic investigations have shown that we humans share 99 % of our genes with animals, suggesting that our “earthly” component shares a common origin. Indeed, the twenty first century scientific findings match what is written in the Genesis story of creation, a story written over 3,500 years ago, well before genetic sciences came to light.

Creatures great and small

As for morphological differences between animal species, it is difficult to naively conclude why some are wild while others are man-friendly-even if the wild ones have different shapes, design, dietary habits, body size and life span. Other important observed features of the members of the animal kingdom are that they are all born, they all age, then ultimately die.

If we are to look at the unseen features of the members of the animal kingdom, we can again identify similarities. For example, all have a gastrointestinal tract, a cardiovascular system, a reproductive system, a respiratory system, a urinary system and much more. While these systems may differ slightly between species, the overall structure and function achieve similar purposes. For example, heart speed is faster in small animals like rats compared to big ones like elephants who have very slow hearts. Likewise, the respiratory system and the number of respiratory cycles per minute are significantly faster in running animals compared to the sedentary and slowly moving ones. Finally, the number of offspring also differs in different species, being just one at a time in big animals like elephants and horses, and many offspring in small animals like rabbits and mice. Such paradox between the number of offspring and animal size makes you think of the important determining role of the activity of those animals.

Unseen wonders

Now to turn to the rest of the animal kingdom and the unseen features of the human body. To start, let us look at the amazing functions of the human brain and its various functions. When humanity is sometimes described as the crown of creation, such a description is based on the superiority of human brain function and skills. Its sophisticated structure and how vital centres are created deep in the skull, to be protected from traumas, make you marvel. Also, the brain controls the different functions of the whole body, with its sensory and motor activities, various vital system functions including the lungs and the heart, all endocrine glands’ function, in addition to various receptors and centres that allow utmost precision and accuracy in everything we do. An example of this kind of precision is a doctor feeling a vein or an artery with the tip of a finger to insert a needle or a musician moving a finger a few millimetres while playing a violin, to produce the exact sound needed. Furthermore, the integrated function of human muscles, nerves and spinal cord is also amazing, let alone the synapsis between the nerve endings and muscle bundles, the chemicals secreted in them which allow electric stimulus transmission from the nervous system to achieve the motor function and desired movement.

The human brain also has the unique feature of storing knowledge. Of course, we should not ignore the importance of the training and programming ability of human brain. We learn how to drive a car, how to play games, how to study, how to operate safely on a sick patient. Such acquired skills are quite limited in other members of the animal kingdom. Moreover, the human brain has the unique ability to invent, discover, improve and correct errors it identifies.

Another very unique feature of human brain is its ability to conduct speech, a feature of humans that is under-developed in other members of the animal kingdom. While most animals can make noise and sounds, only humans can articulate words, sentences and even sing very complex songs. This unique ability seems to be the underlying mechanism behind the development of languages which are based on the human ability to talk and transmit information and knowledge by words and phrases.

The unseen brain has allowed human life to develop over time, building skills and achievements from generation to generation. Millennia ago, humans lived in huts together with animals, and now they build houses and palaces to live in. Centuries ago, we used donkeys, horses and camels to travel but now we use cars, trains, ships and airplanes. Our ancestors burned wood and coal to cook and to warm but now we use electricity to do these.

When we look carefully at the unseen parts of the human body, we also realize that we cannot alter any of it, despite the scientific advances made over the years. We can understand what harms our body and take measures to avoid it. Out of the ability of our brain to discover and invent, we have now produced science-based means for curing various diseases. Consider how we can replace a dysfunctional heart valve or a mobility-limiting joint. These inventions have resulted in a better quality of life, alleviating of symptoms, even helping to avoid early death, in some cases such as heart disease and cancer.

The heart of the matter

Another unseen source of life in humans is the heart. This fist-size organ is so complex in its structure and function. Recent scientific advances have enabled us to study heart function in milliseconds, hence the development of pacemaker treatments. They have also allowed clear imaging of the inside of the heart and the identification of pathologies, developments that guide practitioners to the optimum treatment of heart conditions. Recent discoveries have also allowed us to better understand how people develop coronary artery disease and how the pathology starts at the innermost layer of the arteries, particularly in individuals carrying significant risks for atherosclerosis including, smoking, high blood pressure, diabetes, high cholesterol and obesity. Amazingly, obesity has been shown to be the strongest underlying cause of other risk factors, hypertension, diabetes and hypercholesterolemia. So, nature cannot be blamed in many of these patients but our own patterns of behaviour. Science has shown that walking at least 5,000 steps each day, complying with the design of our body, reduces the likelihood of developing coronary artery disease by 15 per cent.

The unseen physiology of the rest of our body systems and the interaction between systems make us wonder how we are made. A rise of our body temperature by one degree due to a bug infection affects all body systems from the brain to the heart. A virus which cannot be seen by the most powerful microscope can destroy our lungs and cause premature death, as was the case with COVID-19 and others.

Finally, human inventions in the form of powerful microscopes have allowed scientists to study the human cell, which is the smallest living component of our body. Such small cells cannot be replicated in any factory in the twenty-first century, despite the vast scientific developments that surround us. You'll be surprised to learn how complicated and meticulously fine-tuned a human cell is and also how it functions, connects with other cells and other parts of the body. An example of this is the interaction between body minerals, calcium, sodium and potassium with heart and muscle individual cells. Such a function is critically controlled by many factors such as time, electric stimulation and pressure differences producing remarkably harmonious contractions and relaxation of the muscles without missing a beat.

Review

Awe and wonder

Creed

Easter

Film & TV

27 March 2025

5 min read

Heading Home: a pilgrimage that breaks out beauty along the way

We can learn a new language together as we travel.

Jonathan Evens

Jonathan is Team Rector for Wickford and Runwell. He is co-author of The Secret Chord, and writes on the arts.

A shaft of light from an opening in a dome lights a cross on a pedestal.

Church of the Holy Sepulchre.

Kieran Dodds.

This film, this pilgrimage, this story begins in Jerusalem in the rotunda of the Church of the Holy Sepulchre with its Aedicule, a small chapel, containing the tomb from which Jesus rose.

Jesus' resurrection was revolutionary because it is the first fruits of a wider resurrection into a new heaven and a new earth, the new Jerusalem, where all that is harmful on earth is transformed into eternal glory and beauty.

The Church of the Holy Sepulchre holds that vision within its walls, a vision that was then transported throughout the world through pilgrimage and creatively replicated in other locations so that all who entered their local church or cathedral would be transported through art and architecture to the New Jerusalem.

US philanthropist and author Roberta Ahmanson thinks that American Protestants, in particular, have neglected this story because of the Reformation's preference for word over image. As a result, in 2022, she gathered an eclectic group of Christian college presidents, church pastors, and Christian creatives taking them on a pilgrimage from Jerusalem to London via Italy and Aachen while filming their responses to the visual history of the New Jerusalem as found in the churches they visit. In their two-week journey, the group cover almost 2,000 years of church art and architecture.

Ahmanson explains that this search for the reality of the Kingdom of God as it is to be realised in the New Jerusalem at the end of time did not mean that pilgrims were to abandon the world. On the contrary, she says, "their job was to serve this world to make it more like the heavenly home where their ultimate citizenship lay." That remains the aim of this art and architecture as:

“By studying the nature of that promised place, as artists and architects and writers of the past have sought to express it, we are schooled to live lives of wholeness and beauty right here on earth. The longing for beauty is ultimately a longing to be Home, to be in the place where we are whole.”

The beauty of the churches visited on this pilgrimage provided a vision of the New Jerusalem to those who entered in order that they took that vision into their everyday lives when they left. Along the way, the pilgrims on this trip learnt how artists, architects and theologians worked in parallel for many centuries – from Saint Augustine’s vision of a New Jerusalem to Dante’s admonitions about the Last Judgment.

The film combines scenes of beautiful interiors with explanations of their significance from Ahmanson and others, plus it shows the reactions of various of the pilgrims as they allow their sense of wonder and understanding of Church history to be expanded. David and Joy Bailey, founders of Arrabon which cultivates Christian communities to pursue healing and reconciliation in a racially divided world, are two of those to have spoken about the impact the trip had on the group of pilgrims.

Joy said: “Everybody was very literate coming from these strong traditions of faith being either oral or written but to see it so visually impacting, it was breaking us all open and trying to find language for that took the entire trip.” David suggested that: “What the trip was helping you to see was this deeper rootedness, this long tradition that, I think, could actually be very helpful for us today because some of the things that were there were the understanding of humanity as plain on the outside and beauty on the inside, the glory that comes with the inward journey that reflects on Heaven as it is on Earth.”

Re-enacting, revisiting and reinhabiting Christ's journey to the cross and the meaning of his resurrection remains central to Christian experience

As we travel further from Jerusalem in the film, we are surprised to find that the template of the Holy Sepulchre continues to inspire and shape the experience of pilgrims. Ahmanson explains that: “In churches across the old Roman Empire, from Africa and Palestine to the furthest reaches of Britain, liturgy was created to tell the story and to bring the spaces alive in the telling. Pilgrimages to Jerusalem and later to Rome and then to the tomb of Saint James in Spain became a kind of geographic liturgy. When the trip became too long or … too dangerous, believers found alternative destinations. Across the continent, from Magdeburg in Germany and Constance in Switzerland, to Bologna and Pisa in Italy and London and Cambridge in England, round churches or smaller models replicating the Church of the Holy Sepulchre became pilgrim destinations.”

Re-enacting, revisiting and reinhabiting Christ's journey to the cross and the meaning of his resurrection remains central to Christian experience, particularly during Lent and Holy Week. Walking labyrinths, Palm Sunday processions and Passion dramas, praying the Stations of the Cross, washing feet on Maundy Thursday, sharing a Passover meal, the Good Friday three-hour devotional, and the Dawn Eucharist on Easter Day are among the many ways Christians continue to follow in the footsteps of Jesus while remaining where they are during this most special season.

Many of these practices provide the opportunity to go on pilgrimage while remaining at home. Just as with images of the New Jerusalem brought from Jerusalem to the churches of Europe, so with, for example, the practice of praying the Stations of the Cross which originated in medieval Europe when pilgrims were unable to visit the Holy Land, so instead “visited” the Holy places through prayer.

The film, and other creative off-shoots including exhibitions of photographs from the pilgrimage taken by Kieran Dodds and performances by spoken word poet Street Hymns (one of the pilgrims), with his fellow poets Hanna Watson, Jasmine Sims, and Lo Alaman, in response to images of the New Jerusalem, provide viewers with a similar opportunity to experience, reflect and pray. The aim of all these initiatives is, as Ahmanson explains, what has always been the aim; “to serve this world to make it more like the heavenly home” where our ultimate citizenship lies, and to do so by “creating beauty in buildings and art and music and serving the suffering and those in all kinds of need”.

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