A "daeva" is a term from ancient Persian mythology, referring to a class of supernatural beings often associated with chaos and evil. In the context of Zoroastrianism, the daeva are considered malevolent spirits that oppose the good spirit, Ahura Mazda. They are often depicted as deceptive and destructive forces that lead humans away from truth and righteousness. In Zoroastrian texts, the daeva are contrasted with the Yazatas, who are benevolent spirits serving Ahura Mazda. The daeva embody falsehood and darkness, representing the challenges faced by humanity in the struggle between good and evil. Their influence is seen as a test of faith and moral integrity.