What are two figures of speech in Book Six of The Odyssey?

Book VI of The Odyssey is one of the
least anthologized episodes in the epic because not much happens.  Book VI is a "bridge"
between Odysseus being lost and found.  It is a transition between our hero's odyssey
and his return home to Ithaca.  In between, of course, is his stay at King Alcinous'
island-country Phaecia.  It is for the great King that Odysseus frames his flashback
adventures.  It is fitting that the King's daughter (with help from a goddess) finds
him.

Since the action is a return to the present, Book VI
stars off in medias res, ("in the
middle of things"): we don't know where Odysseus's been or who these people are.  Like
him, we are lost.  Since the book is episodic, background information is necessary.
 Odysseus' name is not even mentioned: he is simply identified as "stranger."  Odysseus
must keep his identity a secret.  He has learned the hard way (from Cyclops) that
bragging one's name can cause death and destruction.  As such, he is wandering guest who
will be clothed and fed before he offers his name.

The Book
contains formal monologues.  Goddesses and mortals speak in
long, formal speeches, not realistic or familiar conversation.  The goddess Minerva
addresses Nausicaa thusly:

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"Nausicaa, what can your mother have been about,
to have such a lazy daughter? Here are your clothes all lying in disorder, yet
you are going to be married almost immediately, and should not only be well
dressed yourself, but should find good clothes for those who attend you. This
is the way to get yourself a good name, and to make your father and
mother proud of you. Suppose, then, that we make tomorrow a washing day, and
start at
daybreak...

And Odysseus
responds with an elaborate monologue (excerpted
here):

"O
queen," he said, "I implore your aid- but tell me, are you a goddess or are you a mortal
woman? If you are a goddess and dwell in heaven, I can only conjecture that you are
Jove's daughter Diana, for your face and figure resemble none but
hers...

Together, the
in medias res makes the reader, like Odysseus, feel lost and
disoriented, but the formal monologues seek to establish order between gods and mortals
and guests and hosts, thus making Odysseus begin to feel
welcomed.