Druj is a concept from ancient Persian mythology, particularly associated with the religion of Zoroastrianism. It represents the spirit of chaos, falsehood, and evil, often contrasted with Asha, the spirit of truth and order. Druj embodies deceit and is seen as a force that leads individuals away from righteousness. In Zoroastrian belief, Druj is personified as a female figure who opposes the divine order established by Ahura Mazda, the supreme god. The struggle between Druj and Asha symbolizes the ongoing battle between good and evil in the world, influencing moral choices and human behavior.