The speaker compares a cheerful smile to a beam of light playing on the ocean’s surface. Underneath, the water is dark, cold, and moving restlessly—just as a warm, sunny expression can mask a heart that is quietly heading toward ruin. It’s a simple but haunting way of saying that what we see on the outside, even genuine-seeming joy, doesn’t always reflect what’s churning below.
That hidden agony is one consuming sorrow, a memory that nothing can make heavier or lighter. Joy offers no balm, and affliction no sting, because everything is already shaded by this loss. In moments of pleasure, the grief stays—like a bare, lifeless branch in full summer sunlight. The branch may briefly catch the light, but it will never bloom again. The poem leaves you with a quiet, resigned sadness: a feeling that some wounds turn the heart permanently wintery, no matter how brightly the surface shines.