You might want to go to this website for the answer!
http://glanguagearts.pbworks.com/w/file/fetch/93056184/Slave%20Trade%20Love%20Story%20Read%20Works.p...
<span>In this poem Tennyson refers to both Ulysses and Achilles and in the technique called in literature which is </span>Allusion.An allusion is <span>an expression designed to call something to mind without mentioning it explicitly. You would address it to someone without calling his or her attention.</span>
Explanation:
It has various themes. There's the theme of praise, beauty,love, fantasy
