Mab's Fairy, often referred to as Queen Mab, is a character from Shakespeare's play, "Romeo and Juliet." She is depicted as a tiny fairy who brings dreams to people while they sleep. Mab is known for her mischievous nature and ability to influence the dreams and desires of mortals. In folklore, Mab is associated with the fairy realm and is considered a symbol of dreams and imagination. Her character embodies the whimsical and sometimes chaotic aspects of the fairy world, highlighting the contrast between reality and the fantastical elements of dreams.