She gallops night by night
Through lovers’ brains, and then they dream of love;
O’er courtiers’ knees, that dream on court’sies straight,
O’er lawyers’ fingers, who straight dream on fees,
O’er ladies’ lips, who straight on kisses dream.
– William Shakespeare
Romeo and Juliet, Act 1, Scene 4. Mercutio describes how Queen Mab nightly brings dreams to sleepers in answer to their deepest desires. She brings love to lovers, curtsies to courtiers, fees to lawyers, and kisses to the ladies. But everything is fantasy and illusion, according to Mercutio.