This approach [of the “Confession of Faith Against Ecumenism”] is at variance with the policy of the Ecumenical Patriarchate and, increasingly, the body of local Orthodox Churches which are involved in the painstaking dialogue and progress towards restoring communion between the Catholic Church and the Orthodox Church undertaken by the International Theological Catholic-Orthodox Dialogue, and with the active participation of the Orthodox Church in the work of the World Council of Churches and the Faith and Order Commission. For these a ‘theology of return’ has been set aside, as in Roman Catholic circles, it being recognised that visible Christian unity and re-integration is unlikely to be achieved by insisting that the various sides abandon their tradition and positions and convert to others. Instead, it is envisaged that through dialogue and friendship, no tradition should surrender its integrity but, instead, grow in theological, spiritual and pastoral awareness of the others towards finding a common mind in Christ, reflected faithfully in each Christian tradition, and towards realising greater unity and ultimately communion. Furthermore, it cannot be a threat to tradition and integrity to receive from others what accords, or comes to accord, with them through this growth.
From the blog of the Pontifical Society of St John Chrysostom (UK and Europe)