ARIEL Where the bee sucks. there suck I:In a cowslip's bell I lie;There I couch when owls do cry. On the bat's back I do flyAfter summer merrily.Merrily, merrily shall I live nowUnder the blossom that hangs on the bough. (5.1.5)
Ariel sings of the natural world as he dresses Prospero in his hat and sword so Prospero can be recognized by the courtly folks. This is Ariel's last direct act for Prospero – he embraces the natural world while he dresses Prospero for the world of the court. This seems to be Ariel's delicate way of saying goodbye, which is kind of beautiful.