I'd rather pray for the mutual understanding and appreciation of each other by all of the various Christian faith communities. The word "unity" is a bit... well, maybe assuming too much for the moment. We (the Orthodox) aren't going to be in the Eucharistic unity with Roman Catholics for quite a while, apparently. We aren't going to be, also, in this kind of "unity" with our sisters and brothers Protestants, for the obvious reason that ours and theirs are two very different understandings of the Eucharist. What we need, and for what I'll pray, is not any artificial finding of "common points," but, rather, love. Non-aggressive, non-militant attitude to each other. Feeling, sensing, experiencing that these "others" are real, and that no one needs branding of each other as "heretics" and us, the beloved, the edification into THE only truth there is and has been and will be under the Sun. We all ARE different. Some of us are, perhaps, closer to the ultimate truth than others, and it is natural for all of us to believe that it is "us" ad not "the other guy" who is closer. But we all look at the same one Truth from different angles. And we need each other. We all have some unique "thing" about us that the "other guys" lack, or have in a deficient form. Gotta share.