One obvious place where this juxtaposition of elevated versus ordinary language occurs after the lines 'I grow old, I grow old/I shall wear the bottoms of my trousers rolled. Do I dare to eat a peach? I shall wear white flannel trousers and walk upon the beach." These lines are fairly ordinary speech. But they are then followed by a flight of fancy that is somewhat more formal and poetic: 'I have heard the mermaids singing, each to each.' This is then followed by more ordinary language: "I do not think that they will sing to me."