To the Sea, to the Sea! The white gulls are crying,
The wind is blowing, and the white foam is flying.
West, west away, the round sun is falling.
Grey ship, grey ship, do you hear them calling?
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Tolkien was not only a poet, but but a man of irrevocable understanding of what he wrote. I can read this, and see that he sought to know a passion for the sea, himself.