Alden Bell said this quote

To stop. To cease, just for a moment. To turn your back on the world, to close your eyes - to see the nothing that is not rather than the nothing that is everywhere around you. To just be quiet in your mind for a little minute. There are paradises even yet on the abandoned plains of the earth -- and they are not filled with fecund flowering Edens but rather just with sweet unerring silences.