I've been thinking a lot about the Lord's Supper recently, and why I find it increasingly crucial and comforting amidst the manifold discomforts of 21st century life. It has struck me that the Lord's Supper is a bit like time-travel. The weekly eucharistic ritual, enacted by millions of Christians every Sunday, transports us simultaneously to the past, present and future. And each of these modes is beautiful and nourishing.