After wandering in the desert and returning to Jerusalem, the Jewish people had to transition from movebale mishkan-based Judaism to place-based temple Judaism. Rabbi Jessy Gross argues that contemporary American Judaism must now make the opposite transition—from a place-based synagogue model of the postwar ear to a new model of a mobile mishkan for the 21st century. Drawing on her own experience creating such a community for young adults in Baltimore, Rabbi Gross explains what we can learn from a mobile mishkan model: how to embrace change, take risks, and embrace flexibility.