The Sun came up upon the left,
Out of the sea came he!
And he shone bright, and on the right
Went down into the sea.

(The Sun came up upon the left, 
Out of the sea came he!) – This the metaphor I’ve chosen.

This metaphor means that the sun has risen. It doesn’t just mean that but also means the way we see the sun rising. We see the sun rising like it it’s coming out of the water and that is the way the poet has wrote it.