The Christian mystical tradition is among the least known and most profound contemplative lineages in human history — suppressed repeatedly by institutional Christianity, preserved at great personal cost by contemplatives operating at the margins, and only recently beginning to re-enter mainstream awareness through teachers like Thomas Keating, Thomas Merton, Richard Rohr, and Cynthia Bourgeault. The tradition begins in the Egyptian desert of the 4th century, with the Desert Fathers and Mothers — Christian monastics who fled to the desert to pursue direct experience of God outside the increasingly bureaucratic imperial Church. Evagrius of Pontus (345–399 CE) systematized their approach in writings that would shape all subsequent Christian mysticism: the goal is hesychia (stillness, silence, tranquility), and the method is the repeated returning of attention to God in a prayer that goes beyond words and concepts. The heart is not a metaphor in this tradition. It is the organ of spiritual perception — the deepest center of the person where communion with God occurs.
The crowning achievement of Western Christian mysticism is the 16th-century Spanish tradition represented by Teresa of Ávila and John of the Cross. Teresa's 'Interior Castle' (1577) describes the soul as a crystal globe with seven mansions, the innermost of which is the dwelling place of God — and the contemplative life as a journey inward through these mansions, past the obstacles of distraction, dryness, spiritual pride, and the dark night of the soul, toward the final mansion of union. Her descriptions of the stages of prayer — vocal prayer, mental prayer, the prayer of recollection, the prayer of quiet, the prayer of union, and finally the spiritual marriage — constitute the most psychologically precise map of contemplative development in the Western tradition. John of the Cross, her confessor and collaborator, describes in 'The Dark Night of the Soul' the experience of profound spiritual desolation — the withdrawal of consolation — that often accompanies the deepest stages of contemplative development, a phenomenon recognized across traditions from Buddhist 'dark nights' to Sufi stations of contraction.
Centering Prayer is a contemporary form of Christian contemplative practice developed by Trappist monks Thomas Keating, Basil Pennington, and William Meninger at St. Joseph's Abbey in Spencer, Massachusetts, beginning in the 1970s. Inspired by 'The Cloud of Unknowing' (an anonymous 14th-century English mystical text), by John of the Cross, and by the Desert Fathers, Keating developed Centering Prayer as an accessible method for ordinary Christians to enter the contemplative dimension of their tradition. The method is structured around four guidelines: choose a sacred word as the symbol of your intention to consent to God's presence and action within; sitting comfortably with eyes closed, settle briefly and silently introduce the sacred word; when you become aware of thoughts, return ever-so-gently to the sacred word; at the end of the prayer period, remain in silence with eyes closed for a couple of minutes. The sacred word — 'Jesus,' 'Abba,' 'Peace,' 'Love,' 'God' — functions not as a mantra to be concentrated upon but as a gesture of consent, used only when thoughts capture attention, then released again.
What Centering Prayer shares with TM and other mantra traditions is the use of a word or sound as a vehicle for moving beneath the surface of ordinary mental activity — not to think about the word but to use it as a return mechanism when distracted. What distinguishes it theologically is the framework of relationship: the practitioner is not seeking a state of consciousness but opening to a presence. The silence is not emptiness but fullness — the fullness of divine presence. Keating's framework of 'the Divine Therapy' holds that the deep rest of Centering Prayer allows suppressed emotional material — what he calls 'the unconscious' — to surface and be released, in much the same way that yoga nidra and Vipassana describe the processing and dissolution of accumulated psychological material. The contemplative tradition knows, by a different language, what the neuroscientists are beginning to document.