Exactly. Eastern Orthodox and Eastern Catholic Christians generally don’t kneel at celebrations of the Eucharist, as in our context, kneeling is understood as being penitential in character, and our understanding of the celebration of the Eucharist is inconsistent with a posture of penitence. For us, standing is the posture or worship. At the specific moments of the words of institution and the epiclesis, many of us bow to the Body and Blood of our Lord. On the other hand, in the context of the Roman Catholic Mass, the posture of kneeling is one that emphasizes adoration, and it is for this reason that I’m not one of those Eastern Christians who lectures Roman Catholics about violating the Council of Nicea by kneeling, since the prohibition against kneeling on Sundays is in the context of understanding kneeling as a posture of penitence. In the Western context of kneeling as a posture of adoration, kneeling at the Mass seems perfectly appropriate. However, in the context of the Eastern Christian tradition of eucharistic celebration, kneeling is out of place.