Here we are in autumn and soon leaning toward winter, the holiday time when we gather with loved ones—when home becomes the warmth we circle around. When my spouse and I bought our house twenty years ago, we talked about getting a mezuzah. Mezuzahs are hung on the thresholds of Jewish homes, to signify the transition from the outer world to the inner. Inside each mezuzah is a prayer from the book of Deuteronomy. There was just one little hitch: Neither of us were Jewish.