I hope this is not a source of confusion. But I have recently been reading of the conversion of Benedictine Father Gabriil Bunge from Roman Catholic church where he was apparent a well known author and theologian of patristical writings to Holy Orthodoxy.
Fr. Gabriel Bunge – Benedictine monk, well-respected patristic scholar, and author of the book Earthen Vessels: The Practice of Personal Prayer According to the Patristic Tradition was a Benedictine monk in Switzerland who had been living the eremitical life since 1980. As a Patristics scholar, he has contributed many articles and books to numerous spiritual and monastic journals.
On August 27, 2010 Fr. Gabriel converted to Orthodoxy in the presence of Metropolitan Hilarion of Volokolamsk and Metropolitan Kallistos of Diokleia during an All-Night Vigil at the Church of the ”Joy of All Who Sorrow” Icon in Bolshaya Ordynka Street in Moscow.
Metropolitan Hilarion said to him, ”You have been a Catholic, but an Orthodox deep in your heart. Today, before the All-Night Vigil, you have become Orthodox, thus naturally completing a long spiritual path.
I have translated his explanation for such
Already in Greece, being a Catholic, I understood that precisely West fell from the East and not the other way. That moment was for me indescriabable. It required time to understand and accept it. I cannot condemn anybody or judge, no. This concerns a whole large historical process and we cannot speak that this one is guilty, and also that one. But a fact is a fact. What we call Western Christianity came to birth as a chain of breaks with the East - The Grigorianska Reform, then the actual separation of the Churches in 11 century, then the Reformation in the XV century and finally the 2nd Vatikan council already in the 20th century. This is of course a very rough sketch but in the whole, it seems to me to be faithful.