• the glimmer of two eyes This is an unmistakeable reference to "Alastor," the poem Percy Bysshe Shelley published
    in March 1816 a few months before the excursion to Lake Geneva. The protagonist of
    that poem is haunted by the two eyes of a "veilèd maid" (line 151) of whom he dreamed
    and whom he subsequently pursues to the end of his life. As he dies his last glimpse
    is of "two lessening points of light [that] / Gleamed through the darkness" (lines
    654-55), an all-consuming ideal that is the ironic cause of his destruction.