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.
In the eternal birth that occurs in the core and innermost regions of the soul, God covers the soul with light, whereby the light grows so great in the core of our being, that it overflows into the faculties of the soul and into the outer person.