The Tempest: passage analysis

Analyze the following passage in a well-structured essay of approximately 450 words. You should answer these questions in your analysis:

– what is the dramatic situation of the passage? (what is happening at this point of the play)?
– what rhetorical devices or figures of speech are significant in the passage?
– note: you do not have to list all of the figures of speech and rhetoric. you will be marked on the depth of your analysis, so you may wish to focus closely on two or three, rather than listing all of the ones you can find.
– how is the passage significant to larger ideas or themes in the play?

Prospero: (Act 4, Scene 1)
You do look, my son, in a moved sort,
As if you were dismay’d: be cheerful, sir.
Our revels now are ended. These our actors,
As I foretold you, were all spirits and
Are melted into air, into thin air:
And, like the baseless fabric of this vision,
The cloud-capp’d towers, the gorgeous palaces,
The solemn temples, the great globe itself,
Ye all which it inherit, shall dissolve
And, like this insubstantial pageant faded,
Leave not a rack behind. We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep. Sir, I am vex’d;
Bear with my weakness; my, brain is troubled:
Be not disturb’d with my infirmity:
If you be pleased, retire into my cell
And there repose: a turn or two I’ll walk,
To still my beating mind.