[Missouri gal]

In the Roman rite, in Eucharistic benediction, the monstrance is moved to the celebrant's right first and then left so that the monstrance moves the same general direction as the hands of the people. Notice that when Mass was ad orientum, everybody’s hands would be going the same way at the sign of the cross. Not sure why the uniformity of compass direction was so important in earlier times, but it's probably relevant to the Greek sign of the cross being opposite.

[stuartcr]

I was wondering why they are opposite.