Celtic spirituality and Eastern Orthodoxy: It isn’t unusual to meet people who are drawn to both traditions and wonder whether they are essentially the same thing. Some even suggest that the Celtic Church was simply “Orthodox before the Great Schism.” There is some truth behind that idea—but it also needs a little nuance.
The great Celtic saints—Patrick, Brigid, Columba, Brendan, Aidan, Cuthbert and many others—lived before the Great Schism of 1054. They belonged to the undivided Church, confessing the Nicene Creed, celebrating the sacraments, reading the same Scriptures and worshipping the same Triune God as Christians across both East and West. In that sense, Orthodox Christians today and the Celtic saints share a common inheritance.
Perhaps the strongest connection lies in the way both traditions understand the Christian life. Neither sees Christianity simply as believing the right things or attending the right services. Instead, the focus is on becoming more like Christ.
Orthodox theology speaks of theosis—participation in the divine life by grace. Although the Celtic saints did not use that particular Greek word, their writings consistently point in the same direction. Their concern was that people should grow in holiness, be transformed by the Holy Spirit, and increasingly reflect the character of Jesus. The Apostle Paul expresses this beautifully when he writes that we are “being transformed into his image with ever-increasing glory” (2 Corinthians 3:18).
Prayer also occupies a remarkably similar place in both traditions. The Orthodox have their Jesus Prayer, their daily offices and their emphasis on prayer of the heart. Celtic Christians developed rhythms of morning and evening prayer, blessings for the ordinary tasks of life, and a deep love for the Psalms. In both traditions, prayer is woven into the fabric of everyday living rather than confined to church services.
Another obvious point of contact is the practice of asceticism. Many of the Celtic saints embraced fasting, simplicity, solitude and voluntary poverty. These practices were never intended to earn God’s favour but to remove distractions and create space for deeper communion with Christ. In this they resemble the Desert Fathers of Egypt, like St Antony, whose influence reached Ireland through Gaul and shaped much of early Celtic monastic life.
The image of life as a pilgrimage also resonates strongly. Orthodox spirituality frequently describes the Christian life as a journey towards union with God. Celtic Christians expressed this through peregrinatio pro Christo—leaving home for the sake of Christ, trusting God without knowing exactly where he might lead. St Brendan’s famous voyage has become the classic picture of this kind of faith: stepping into the unknown because Christ has called.
Both traditions also display a profound appreciation for creation. This is sometimes misunderstood as if Celtic spirituality were somehow “nature worship,” but nothing could be further from the truth. Creation was treasured because it bears witness to its Creator, as Paul writes in Romans 1. The heavens declare the glory of God, as Psalm 19 reminds us. Orthodox theology likewise speaks of creation being filled with God’s glory and ultimately destined for renewal in Christ, like most thorough evangelical theology would. The created world becomes a window through which we glimpse the Creator.
One further similarity that is often overlooked is the importance of spiritual guidance. Orthodox Christians value the wisdom of a spiritual father or elder. The Celtic monasteries nurtured a similar role in the anamchara, or “soul friend,” who accompanied believers in prayer, repentance and discernment. Christian growth was understood as something learned within relationships, not merely through acquiring information.
Having said all that, there are also genuine differences.
The organisation of the Celtic churches was often centred on monasteries, with abbots exercising enormous influence, whereas Orthodoxy developed around bishops and dioceses. Orthodox worship evolved into the familiar Divine Liturgies of St John Chrysostom and St Basil, while the Celtic churches developed their own local liturgical customs, many of which have been lost. Likewise, the rich theology of icons that is central to Orthodoxy developed over centuries after the lives of many of the Celtic saints, even though the Celtic world certainly produced beautiful crosses, manuscripts like the Lindisfarne Gospels, and other sacred art.
So, should we think of Celtic spirituality as Orthodox?
The answer is both yes and no.
Yes, in the sense that both spring from the life of the early undivided Church and share many theological instincts and spiritual practices. No, because each developed within its own historical and cultural setting, and each followed its own path over the centuries.
What strikes me most is not the differences but the shared atmosphere. Both traditions cultivate reverence, silence, beauty, hospitality, regular prayer, fasting, humility and an understanding that the Christian life is a lifelong journey of becoming more like Christ. There is a depth, a patience and an attentiveness to God’s presence that contemporary Western Christianity can sometimes neglect.
Perhaps that is why so many people who begin exploring Celtic spirituality eventually find themselves reading the Desert Fathers or attending an Orthodox service. They recognise familiar themes, not because one tradition copied the other, but because both draw deeply from the same ancient wells of Christian faith.
Ultimately, the common thread is found not in a particular style of worship or a distinctive monastic practice, but in the words of Jesus himself:
“Abide in me, and I in you.” (John 15:4)
That invitation lies at the heart of both traditions. Whether we learn from Patrick or Seraphim of Sarov, Brendan or Anthony the Great, Columba or the Desert Fathers, the goal remains the same: to know Christ more deeply, to be transformed into his likeness, and to live every moment in the light of his presence.
Andrew S M Clark 