At 2:00 that Friday afternoon, the train was full. Surrounding me were young moms and dads, strollers laden with toddlers and groceries, knapsacks on handles. The air was charged with excitement, and as travelers disembarked, the hurried pushes and shoves were not rude, just time-pressured since in only a matter of hours, Shabbat would begin and duties must cease for the weekend. We were greeted at the station by a friend who quickly shuttled us home in time for a change i