William Wordsworth, a key figure in the Romanticism literary movement, wrote the poem 'A Slumber Did My Spirit Seal' in 1798, which is part of his Lucy poems series despite not mentioning Lucy by name. The poem explores themes of existential awareness and the process of accepting death, illustrating the speaker's dream-like state and realization of loss. Wordsworth's poem is notable for its unique position in the Lyrical Ballads collection and its poignant reflection on life and mortality.