“Without doubt, regular periods of physical silence play a crucial role in the spiritual life.  It must be cultivated and reverenced.  We don’t make retreats alongside highways.  Places of retreat, centers of recovery and healing, even some religious communities purposely cultivate physical silence in service of something else. Stretches of physical silence and contemplation, especially on a daily basis, help destress the nervous system.  While the constant stimulation of the noise of everyday life keeps anxiety levels high and our attention fixed on objects that we are (more or less) aware of, whether an exterior object such as a computer screen or an interior object such as a thought or feeling or mind-tripping inner video.  But God is not an object in the way these things are objects and therefore cannot be an object of our awareness in the same way.  This is one of the implications of what theology calls the Divine Simplicity.  All creation emerges from and points to (at one and the same time) this simple, grounding Source that is not a particular thing in way creatures are.
From A Sunlit Absence by Martin Laird O.S.A.

For reflection:  Do you sometimes think periods of silence are a waste of time?
                            If your mind is flooded with thoughts when you are in silence, do you know how to cope with them?
                             Why do you think silence is required to deepen your relationship with God?