Why poet compared the sea to a forest in the poem the song of the whale?

In the poem "The Song of the Whale," the poet may have compared the sea to a forest to convey the idea of vastness and depth. Just like a forest is filled with mystery and hidden secrets, the sea is also seen as a place of unknown wonders and untold stories. The poet may have used this comparison to evoke a sense of awe and reverence for the sea.