To pray is not to use special language; it is the sound of a cry or a laugh rising from ordinary days. Formal or official words can often be lifeless. To pray we need to return like children to an elemental language of soul, to something close to song, to chant, to playground singing.
On the surface, silence was simple: we didn't speak unless it was necessary. But what was the point of silence? The point was, we learned, not mere silence, not silence to preserve some sort of order, but something much greater. In silence the idea was to recollect ourselves, to place ourselves more squarely in the presence of God than we would if people were talking to us all the time. We could pray, we could meditate, we could contemplate.