This poem was composed in a grove at the north-eastern end of Grasmere lake, which grove was in a great measure destroyed by turning the high-road along the side of the water. The few trees that are left were spared at my intercession. The poem arose out of the fact, mentioned to me at Ennerdale, that a shepherd had fallen asleep upon the top of the rock called The Pillar, and perished as here described, his staff being left midway on the rock.