Fa Hai is a character from Chinese folklore, particularly known from the classic novel "Journey to the West." He is depicted as a monk who is dedicated to fighting evil spirits and protecting the innocent. His character often embodies the struggle between good and evil, showcasing the moral dilemmas faced by those in positions of power. In various adaptations, Fa Hai is portrayed as a complex figure, sometimes seen as a villain due to his harsh methods. His interactions with other characters, such as Zhu Bajie and Sun Wukong, highlight themes of redemption and the consequences of one's actions in the pursuit of righteousness.