Peace unto pieces

Why is it so difficult to live in peace? When we are busy in life working, managing home, relationships, etc, we long to have some peace... some time for ourselves... and when we finally get the chance to be that way, it kinda feels empty...not peaceful...
We are so used to equating doing something = being useful in life that we have forgotten what it is to just listen to the silence around us, observe around, introspect and probably use the time to just enjoy being you and things around you... In a way it is doing something...