O Helen, goddess, nymph, perfect, divine!
To what, my love, shall I compare thine eyne?
Crystal is muddy. O, how ripe in show
Thy lips, those kissing cherries, tempting grow!
That pure congealed white, high Taurus snow,
Fann’d with the eastern wind, turns to a crow
When thou hold’st up thy hand: O, let me kiss
This princess of pure white, this seal of bliss!

– William Shakespeare

A Midsummer Night’s Dream, Act 3, Scene 2. After Puck drops the love potion into Demetrius’ eyes, he wakes up, sees Helena and immediately falls in love with her. Demetrius uses metaphorical language to describe Helena’s beauty and compare her to a goddess and her lips to tempting cherries. This is a sharp change from his former dislike and disgust of Helena. She is really confused at this stage, as Lysander just before this told her that Demetrius didn’t like her: "he loves not you."