For a Roman-rite Catholic, seeing the faithful of the Byzantine rite bowing or showing reverence to the icon of our Lord to the right of the royal doors might be a bit puzzling - the icon represents Christ but why not reverence the Blessed Sacrament or in the direction of the altar instead? Originally Christ was depicted on the wall/ceiling of the apse but gradually a depiction of the Theotokos replaced it, as the main depiction of Christ was moved to the central dome. (Correct?) It might make more sense for a Roman-rite Catholic to show reverence to the crucifix at or above the altar. How does one harmonize worshipping Christ through the icon on the iconostasis with praying East? Would it make more sense to a Roman Catholic for there to be a depiction of Christ on the apse as well? The Byzantine use of sacred space and icons in worship may be puzzling to a Roman Catholic at first, but adjusting things so that they make more sense to a Roman Catholic may not actually be better.