In the religion of ancient Persia, Zoroaster had a vision in which he was led to meet Anura Mazda, the teacher of good religion. This god was worthy of worship and had created beings to assist humans in living a worthy life. Zoroaster also named Angra Mainyu, the twin of Anura Mazda, as the source of everything evil, and his assistants, the daevas, were emissaries of evil thoughts, words, and deeds. In this pantheon, it is Anura Mazda, the god of goodness, who is the superior, and who will be assisted by right-living humans in defeating his evil twin.
This points to the need for vigilance about how we act, think, and speak as we prepare ourselves for the reunification with our Twin Soul.