Melvyn Bragg and guests discuss blood. For more than 1500 years popular imagination, western science and the Christian Church colluded in a belief that blood was the link between the human and the divine. The Greek physician, Galen, declared that it was blood that contained the force of life and linked the body to the soul, the Christian Church established The Eucharist – the taking of the body and blood of Christ. In our blood was our individuality, it was thought, our essence and our blood lines were special. Transfusion threatened all that and now itself is being questioned.Why is it that blood was used to define both man and messiah? And how has the tradition of blood in religious thought been affected by the progress of medicine?With Miri Rubin, Professor of European History at Queen Mary, University of London; Dr Anne Hardy, Reader in the History of Medicine at the Wellcome Trust Centre for the History of Medicine at University College London; Jonathan Sawday, Professor of English Studies at the University of Strathclyde.

Melvyn Bragg and guests discuss the Holy Grail.Tennyson wrote:“A cracking and a riving of the roofs,And rending, and a blast, and overheadThunder, and in the thunder was a cry.And in the blast there smote along the hallA beam of light seven times more clear than day:And down the long beam stole the Holy Grail”.The sacred allure of the Grail has fascinated writers and ensnared knights for a thousand years. From Malory to Monty Python, it has the richest associations of any artefact in British myth. But where does the story spring from? What does it symbolise and why are its stories so resolutely set in these Isles and so often written by the French?With Dr Carolyne Larrington, Tutor in Medieval English at St John’s College, Oxford; Jonathan Riley-Smith, Dixie Professor of Ecclesiastical History at Cambridge University; Dr Juliette Wood, Associate Lecturer in the Department of Welsh at the University College of Wales in Cardiff.

Melvyn Bragg and guests discuss redemption. In St Paul's letter to the Galatians, he wrote: "Christ has set us free; stand fast therefore, and do not submit again to a yoke of slavery". This conception of Redemption as freedom from bondage is crucial for Judeo-Christian thought. In Christianity, the liberation is from original sin, a transformation from the Fall to salvation - not just for mankind but for individual human beings. The content of that journey is moral, gaining redemption by becoming better.So why is the idea of transformation so appealing to human beings? To what extent were Christian views of Redemption borrowed from Judaism? How did philosophers such as Marx reinterpret the concept of Redemption and can redemption retain its value in a world without God? Does its continuing power signify a deep psychological need in humankind?With Richard Harries, Bishop of Oxford; Janet Soskice, Reader in Modern Theology and Philosophical Theology at Cambridge University; Stephen Mulhall, Fellow and Tutor in Philosophy at Oxford University.

Melvyn Bragg and guests discuss the Lindisfarne Gospels. In 597 Pope Gregory the Great ordered that a mission of monks be sent from Rome to convert Britain to its own brand of Christianity - lest it be submerged by the pagan beliefs of the Anglo-Saxon overlords. Just over 100 years later, the Lindisfarne Gospels were produced - lavish and ornate manuscripts, central to the story of how Britain came to be unified by the flag of the Roman Church – and they came to embody a set of beliefs and ideas that dominated Britain for a thousand years. Was the Rome mission in the 6th century the only strand of Christianity to sweep through Britain? Why did Northumbria become a key battleground for ideological dispute? How successful were the Lindisfarne Gospels in unifying the different strands of Christianity? To what extent did they serve as a founding statement of Christian identity in Britain?With Dr Michelle Brown, Curator of Illuminated Manuscripts at the British Library and author of A Guide to Western Historical Scripts: From Antiquity to 1600; Dr Richard Gameson, Reader in Medieval History at Kent University and editor of St Augustine and the Conversion of England; Professor Clare Lees, Professor of Medieval Literature at King's College London and author of Tradition and Belief: Religious Writing in Late Anglo-Saxon England.

Melvyn Bragg and guests discuss Muslim Spain. In 711 a small army of North African Berbers invaded Spain and established an Iberian Islamic culture that would last for over 700 years. Despite periods of infighting and persecution, Muslim Spain was a land where Muslims, Jews and Christians co-existed in relative peace and harmony. Its capital, Cordoba, although not unique amongst Spanish cities, became the centre and focus for generations of revered and respected philosophers, physicians and scholars. By the 10th century Cordoba was one of the largest cities in the world. But what some historians refer to as Cordoba’s Golden Age came to an end in the 11th century, when the society was destabilised by new threats from Africa to the South and Christendom to the North. However, it was not until 1492, when Granada fell to the Catholic monarchs Ferdinand and Isabella, that Islamic Spain was well and truly over.In that same year the Jews were expelled from its shores and Christopher Columbus set sail to lead Spanish Christian expansionism into the new world. But how did Muslims, Jews and Christians interact in practice? Was this period of apparent tolerance underpinned by a respect for each other’s sacred texts? What led to the eventual collapse of Cordoba and Islamic Spain? And are we guilty of over-romanticising this so-called golden age of co-existence? With Tim Winter, a convert to Islam and lecturer in Islamic Studies at the Faculty of Divinity at Cambridge University; Martin Palmer, Anglican lay preacher and theologian and author of The Sacred History of Britain, Mehri Niknam, Executive Director of the Maimonides Foundation, a joint Jewish-Muslim Interfaith Foundation in London.

Melvyn Bragg and guests discuss the Soul. In his poem ‘Sailing to Byzantium’ WB Yeats wrote:An aged man is but a paltry thing, A tattered coat upon a stick, unlessSoul clap its hands and sing, and louder singFor every tatter in its mortal dress. For Plato it was the immortal seat of reason, for Aristotle it could be found in plants and animals and was the essence of every being - but it died when the body died. For some it is the fount of creativity, for others the spark of God in man. What is the soul made of and where does it live? Is it the key to our individuality as humans? And when we die will our souls find paradise or purgatory, rebirth, resurrection or simply annihilation? With Richard Sorabji, Gresham Professor of Rhetoric at Gresham College; Ruth Padel, poet and author; Martin Palmer, Theologian and Director of the International Consultancy on Religion, Education and Culture.

Melvyn Bragg and guests discuss the history of marriage.‘To have and to hold from this day forward, for better for worse, for richer for poorer, in sickness and in health, to love and to cherish, till death us do part.’ These marriage vows have been recited at church weddings since 1552, whenever two individuals have willingly pledged to enter into a relationship for life. But before the wedding service was written into the Book of Common Prayer, marriages were much more informal: couples could simply promise themselves to one another at any time or place and the spoken word was as good as the written contract. The ancients permitted polygamy and the taking of concubines so how did monogamy come to be the favoured mode in the West? Were procreation, financial stability, companionship, or love the reasons to get married? And what role has the state and the church played in legislating on personal affairs? With Janet Soskice, Reader in Modern Theology and Philosophical Theology, Cambridge University; Frederik Pedersen, Lecturer in History, Aberdeen University; Christina Hardyment, Social historian and journalist.

Melvyn Bragg and guests discuss the life and teachings of The Buddha. Two and a half thousand years ago a young man meditated on life and death and found enlightenment. In that moment he saw his past lives spread out before him and he realised that all life, indeed the very fabric of existence, was made of suffering. That man was Siddhartha Gautama but we know him as The Buddha. He taught us that we have not one but many lives and are constantly reborn in different forms according to the laws of Karma: an immortality that binds us to a cosmic treadmill of death, decay, rebirth and suffering from which the only escape is Nirvana. Buddhism was quickly established as a major religion in South East Asia but now two millenia later it is one of the fastest growing religions of the Western world. Why has it captured the spirit of our times? Is it because there is no compulsion to believe in God? And what is it that Western converts hope to get from Buddhism - truth and enlightenment or simply a spiritual satisfaction that Western religion cannot provide? With Peter Harvey, Professor of Buddhist Studies at the University of Sunderland; Kate Crosby, Lecturer in Buddhist Studies, SOAS; Mahinda Deagallee, Lecturer in the Study of Religions, Bath Spa University College and a Buddhist Monk from the Theravada tradition in Sri Lanka.

Melvyn Bragg explores the strange and mystical world of the poet W B Yeats. Celtic folklore, the Theosophical society, the Golden Dawn group, seances and a wife who communicated with the spirit world all had a huge effect on the work of this great Irish poet. He published his first collection in 1889 and won the Nobel prize for literature in 1923.At the close of the nineteenth century he published one of his best known works. He Wishes for the Cloths of Heaven: “Had I the heavens’ embroidered cloths,Enwrought with golden and silver light,The blue and the dim and the dark clothsOf night and light and the half-light,I would spread the cloths under your feet:But I, being poor, have only my dreams; I have spread my dreams under your feet; Tread softly because you tread on my dreams.” But Yeats the dreamer and the poet was also a mystic, a philosopher and a practitioner of magic. From the occult subcultures of Victorian London to the outlandish folklore of the Irish Peasantry, Yeats’ obsession with the spiritual world infused his poetic mind and even drove him to describe his own religion. Why was the period so alive with spiritualism? And how did the poems reflect the dreams? With Roy Foster, Carroll Professor of Irish History at Oxford University; Warwick Gould, Director of the Institute of English Studies, University of London; Brenda Maddox, author of George’s Ghosts: A New Life of W B Yeats.

Melvyn Bragg and guests discuss the Cathars, a medieval European Christian sect accused of heresy. In 1215 Pope Innocent III called the greatest meeting of Catholic minds for a hundred years. He hoped that the Fourth Lateran Council would represent the crowning glory of a Papacy that was more powerful than ever before, and it laid down decrees to standardise Christian belief across the whole of Western Europe and heal the papal schism of a generation before. But despite the wealth and power of the Vatican, all was not as it should have been in the Catholic world; Jerusalem was lost, the Crusades were failing, and in the regions of Europe the spectre of heresy moved over the land. It loomed largest in the wealthy Languedoc region of Southern France, where celibate vegetarians called Cathars were proving more popular than Jesus. The Pope moved against the Cathars but why was Catharism such a threat, what were its beliefs and what was the intellectual and spiritual climate that made the high middle ages the era of the heretic?With Malcolm Barber, Professor of Medieval History at the University of Reading; Miri Rubin, Professor of Medieval History at Queen Mary, University of London; Euan Cameron, Professor of Modern History at the University of Newcastle upon Tyne.