ChatGPT said: ChatGPT Zarathustra, also known as Zoroaster, was an ancient Iranian prophet whose teachings laid the foundation for Zoroastrianism. Central to his philosophy is the concept of dualism, portraying life as a constant battle between the forces of good and evil. He emphasized the importance of individual choice in this struggle, advocating for the cultivation of good thoughts, good words, and good deeds. WIKIPEDIA Zarathustra introduced the worship of Ahura Mazda, the "All-knowing Lord," as the supreme deity, representing truth and order. Opposing Ahura Mazda is Angra Mainyu, the destructive spirit embodying falsehood and chaos. This dichotomy underscores the moral responsibility of individuals to align themselves with truth and righteousness. WIKIPEDIA A key aspect of Zarathustra's teachings is the emphasis on purity, both physical and spiritual. He advocated for maintaining cleanliness in daily life and purity of mind through good thoughts, words, and deeds. This holistic approach to purity was seen as essential for personal and communal well-being. ONLINE LIBRARY OF LIBERTY In summary, Zarathustra's teachings revolve around the principles of dualism, the worship of Ahura Mazda, the moral imperative of good thoughts, words, and deeds, and the pursuit of purity in all aspects of life.