Tilt at windmills

The phrase "Tilt at windmills" originates from Miguel de Cervantes' novel Don Quixote. It refers to a person engaging in a futile or impossible endeavor or battle. The phrase specifically alludes to Don Quixote, the main character, who imagines windmills as giants and charges at them with his lance, believing he is fighting against formidable opponents. Therefore, "tilt at windmills" symbolizes someone persistently pursuing an unachievable or misguided goal, often in the face of opposition or criticism.