My answer to the similar question would be similar to Kosta's. Catholicism is what we do, not merely what we theoretically know. Praxis matters.
That is profoundly true. However, the Latin Church has noted the "bridge" between the West and the Eastern Orthodox - the Eastern Catholics. They still continue their particular cultural practices and celebrate the Liturgy in the same way as they have for over a thousand years. They are, however, in union with the Pope. This can be a lesson on how unification can take place, since the Eastern Catholics have a similar background that the Eastern Orthodox do.
Regards