I used to have a friend who was a hero, a prophet, and a martyr in his own mind. I remember telling him he should start his own religion. A dig I suppose, because we both knew I wouldn't be one of the followers.
Back to Manichaeism - sounds complicated.
Simple form—so I recall—was that there is two gods—a good god and a bad god. (Jesus and Satan) One of heaven one of earth. Follow one and reject the other. Where am I wrong?