The very first rule was made to be broken—the rule that heaven is heaven and earth is earth and each must remain in its place. The first to break that rule was the very One who made it, when His glory descended upon Mount Sinai. And He gave us a Torah so that we, too, could continue breaking that rule—and all the rules that extend from it: The rule that truth must remain in the mind, but not descend into the heart; That serenity and spirituality...