—Hood, Hero and Leander.
A metaphor is a figure whereby the one thing, instead of being likened to the other, is, as it were, transformed into it, and is described as doing what it (the other) does.
"Poetry is
The grandest chariot wherein king-thoughts ride."
—Smith, Life Drama.
"The anchor, whose giant hand
Would reach down and grapple with the land."
—Longfellow, Building of the Ship.
Sometimes the two are united in one passage, as in—
"The darkness