That’s clearly referring to Prospero’s ending monologue from The Tempest.

Now my charms are all o’erthrown, And what strength I have ’s mine own, Which is most faint. Now ’tis true I must be here confined by you, Or sent to Naples. Let me not, Since I have my dukedom got And pardoned the deceiver, dwell In this bare island by your spell, But release me from my bands With the help of your good hands. Gentle breath of yours my sails Must fill, or else my project fails, Which was to please.

It’s not so obvious to me how the Fontaine storyline relates to The Tempest, though.