Silence brings us back to basics, to our senses, to our selves. It locates us. Without that return we can go so far away from our true natures that we end up, quite literally, beside ourselves. We live blindly and act thoughtlessly. We endanger the delicate balance which sustains our lives, our communities, and our planet.
The purpose of meditation practice is not enlightenment; it is to pay attention even at unextraordinary times, to be of the present, nothing-but-in-the-present, to bear this mindfulness of now into each event of ordinary life.