Blending Christianity with American Indian spirituality, Father Ed Cook made a cross mark on the foreheads of people at the Congregation of the Great Spirit on Wednesday after dipping his thumb into ashes made by burning more than just the palm leaves from the previous year's Palm Sunday. "Turn away from sin, and follow the Gospel," Cook said to each person as members of the intertribal, predominantly American Indian congregation came forward to participate in a centuries-old Christian ritual. In their Roman Catholic congregation, however, the palm ashes are mixed in advance with ashes from a large, clay firepot where...