[quote=DavidFilmer]The “Roman” Catholic Church permits Her members to partake of Communion within the Greek Orthodox Church, but only under some rather narrow circumstances.
A priest told me that Greek Orthodox, however, are permitted (by their own leadership) to freely commune with Roman Catholics (and Rome places no restrictions on their participation). According to this priest, Greek Orthodox have no limitations on communing with Roman Catholics, and may do so at will.
Is this true?
I think that this is a great question, but I am almost positive that you’ve misinterpreted what the priest said.
The Catholic Communion will allow Orthodox to commune in Catholic Masses and Divine Liturgies, with the recommendation that the persons in question follow the wish of their own bishops. Otherwise the Catholic church will put up no obstructions.
Catholics are not allowed by Orthodox to commune in an Orthodox Divine Liturgy.
So we know that at this point there could be some one way traffic of Orthodox trooping over to Catholic churches, except that I don’t think that there are any Orthodox bishops that would allow it officially. So while an Orthodox would be received in the Catholic church for communion they would be committing the sin of disobedience.
There may be some cases of mixed marriages that the Greek Orthodox priest is aware of who will attend either church as necessary. I don’t know if these trips are blessed quietly or perhaps there is a “don’t ask - don’t tell” kind of thing going on but I am sure among the laity a little cross-polinization is going on.
Officially though, they aren’t supposed to do that AFAIK. The best way to get an answer to this is to post on an Orthodox board.