are not separated by a vast distance. (Yes, sometimes we try to put up walls to stop God getting near us, but he can see through them, and sometimes we hear him knocking gently on the other side.) Our sphere of reality and God’s sphere of reality—earth and heaven in biblical language—were made to fit together. Prayer is one of the key places where that happens. In fact, some of the biblical prayers, especially the ones in the book of Revelation, seem to be taking place in heaven itself, with us earth-dwellers