Sometimes it is nice to be silent. 
In nature it allows us to hear things we've never heard before,
in common communication we can hear people and understand what they are saying. 
Is it any wonder, why electronic devices have taken over our lives? We can't go a day without having a cell phone or computer with us or on at all times. 

Go now! take a relaxing vacation on a beach or national park, listen to the laughter of children playing in the surf or the birds chirping in the trees. and soon you'll realize that this is what we've tuned out of our lives!