PROSPERO: [aside] It goes on, I see,
As my soul prompts it. [to Ariel] Spirit, fine spirit! I’ll free thee
Within two days for this.
– William Shakespeare
The Tempest, Act 1, Scene 2. Prospero is delighted when it is love at first sight for Miranda and Ferdinand and he congratulates himself for making it happen. He promises Ariel that he will give him his freedom in two days for helping him accomplish this with his magic.