What does the pigeon flying out of the barn symbolise of Curley's wife when she dies in Of Mice and Men?

Well, honey, that pigeon flying out of the barn in "Of Mice and Men" symbolizes Curley's wife's fleeting freedom and escape from the oppressive ranch life before she meets her tragic end. It's like a poetic way of saying she finally found a way out, even if it was in death. So, yeah, that pigeon was her ticket to freedom, in a twisted kind of way.