The top of the tower had disappeared in the mist, but its bells rang clear and true, tolling beyond the abbey gates, over the slopes of frost-fringed trees, down to the town in the valley below. Final call for morning mass. I took a seat at the back of the modern church, built when the Abbey of Saint Maurice and Saint Maurus relocated to this hill in Clervaux, north Luxembourg, in 1910. Then the monks swept in – and swept away 1,000 years. Sung in Latin, their Gregorian chants filled the nave: simple, calming, timeless. I’m not religious and didn’t understand a word, but also, in a way, understood it completely.