The poem begins with an odd change of view. Instead of looking at Trafalgar Square directly, the speaker looks down at wet paving-stones, where the reflections of people appear. The "we" in the poem are blue, blurry, and faraway, as if the walkers have become images of themselves, set among the bright, sunlit buildings mirrored in the water.
Then the poem notices something strange. Each time a person steps, their foot meets the sole of a shoe belonging to someone in the reflection. That reflected person seems to walk upside down, in "another world." The last lines turn this into a striking comparison: the steps are like lotuses appearing under the infant Buddha's feet, a familiar image of flowers blooming wherever a holy child walks.
The mood is quiet, curious, and a little wondrous. The speaker finds something almost sacred in an ordinary rainy city moment, suggesting that every step touches a hidden, shared world.