Read this line from the first stanza of the poem. Before him only shoreless seas. How does the poet's use of the words "shoreless seas" affect the poem? It suggests the endless seas that Columbus must cross before reaching a destination and gives the poem an anxious tone. It conveys an image of a wide expanse of ocean and gives the poem a carefree tone. It suggests the vast, unknown seas that Columbus strikes out on and gives the poem a foreboding tone. It suggests the gentleness of the ocean waves and gives the poem a peaceful tone.