Darkness is the main character here, and it never really lets go. The poem opens with a dizzying picture of shadow spinning "round and round," and it comes back to the same lines at the end, so the reader ends up exactly where they began, caught in the loop. The title suggests a lighthouse, a place meant to guide people, yet the poem gives us only its shadows, and no light reaches the eyes.
The speaker sounds uneasy and a little weary. Tears freeze into "twisted ice," and things are never what they first seem. Riddles and patterns appear everywhere, and the search for answers feels endless. But one line cuts through the confusion: whatever you have done, good or bad, "the key is within." The speaker seems to say that understanding has to come from inside, not from the world outside. The mood is eerie and hypnotic, with a thin thread of hope running through it. The steady rhymes and short lines add to the feeling of going around in circles.