Most people mistakenly believe that all you have to do to stop working is not work. The inventors of the Sabbath understood that it was a much more complicated undertaking. You cannot downshift casually and easily. This is why the Puritan and Jewish Sabbaths were so exactingly intentional. The rules did not exist to torture the faithful. They were meant to communicate the insight that interrupting the ceaseless round of striving requires a surprisingly strenuous act of will, one that has to be bolstered by habit as well as by social sanction.
There must be a time of day when we who make plans forget our plans and act as if we had no plans at all. There must be a time of day that when we have to speak, we fall very silent ... and our mind forms no more propositions, and we ask: Did they have a meaning? There must be a time when we who pray go to our prayer as if it were the first time in our life that we had ever prayed; when we of resolutions put our resolutions aside as if they had all been broken, and we learn a different wisdom: distinguishing the sun from the moon, the stars from the darkness, the sea from the dry land, and the night sky from the shoulder of a hill.