Read the following passage, then answer the question.

When the lighthouse keeper retired after forty years, the harbor town held a banquet in his honor, and the speeches praised his steadiness, his lonely vigils, his refusal of even a single night off. He smiled through all of it. But what he remembered, riding home in the dark, was not the duty. It was the particular quality of certain dawns, when fog lifted off the water in sheets and the whole bay turned the color of a struck match. He had never told anyone that he stayed for those.