It is for all Christians to embark upon holy emulation of their brothers and sisters in humble, penitent prayer and the deepening of the spiritual life.
Each Christian group, Catholics among them, will deepen its life, will make the best of its talents, will reform what needs reforming in it, will mount towards our Lord until the walls of separation are left behind.
Then all recognizing in their brothers and sisters that Christ whom they adore, will see him as he is, one, undivided in his love, his life and his thought.
Then it will be found that dogmatic unity has come, the full allegiance of all souls to the one mind of Christ.
Union will be proclaimed by the voice of the church leaders - and by the voice of Peter.
The prayer of Christ, and the spirit of this prayer in our life, ought to animate, quicken and possess the soul of any Christian who approaches the Saviour, whether in the solitude of mental prayer, or in sacramental life, or in participation in the eucharistic feast.
If every Thursday evening, the night of Holy Thursday, an ever-increasing multitude of Christians of every confession would form, as it were, an immense net embracing the earth like a vast invisible monastery in which all could be absorbed in prayer to Christ for Unity, would we not have here the dawn of Christian Unity?
Is it not this attitude of spiritual emulation, sincere, profound, ardent, which the Father awaits for the realization of the visible unity of the Body of the Church, for the accomplishment of the miracles necessary for the reunion within his visible Church of all those who love him and have been visibly marked by the seal of baptism?
To find out more about Paul Couturier, the Week of Prayer and Spiritual Ecumenism, follow the links, or go to the Paul Couturier website. See also the book published by the Catholic League to mark the 50th Anniversary of his death, The Unity of Christians: The Vision of Paul Couturier.