"Fallen angels" refer to angels who have been cast out of heaven due to rebellion or disobedience. This concept is often associated with religious texts, particularly in Christianity, where the most notable fallen angel is Lucifer, who defied God and was expelled from paradise. These beings are typically depicted as having lost their divine grace and are often associated with temptation and evil. In literature and popular culture, fallen angels are frequently portrayed as tragic figures, struggling with their lost status and seeking redemption. They symbolize the conflict between good and evil, representing the consequences of pride and disobedience. This theme resonates in various works, including John Milton's "Paradise Lost," which explores the complexities of their nature and choices.