Ahriman, also known as Angra Mainyu, is a central figure in Zoroastrianism, representing the spirit of chaos and destruction. He embodies evil and is the adversary of Ahura Mazda, the supreme god in Zoroastrian belief. Ahriman is associated with darkness, lies, and all that opposes the divine order. In Zoroastrian cosmology, Ahriman is responsible for the creation of harmful spirits and the spread of disorder in the world. His influence leads to suffering and conflict, contrasting with the goodness and light brought by Ahura Mazda. The ongoing struggle between Ahriman and Ahura Mazda symbolizes the eternal battle between good and evil.