Long ago when the world was new, there was a god that wanted to create a paradise for humanity. In his perfect world what makes us human would have been stripped away. He was stopped but the past was forgotten. Humanity had to start over from the beginning. The world had fallen out of alignment of the paths that connected her to the rest of the multiverse. The great Terra, she supported life for millennia. Now she crumbles to ashes. Magic was ripped from the world but humanity advanced via technology.
God banished those that meddled with his plans previously. They were trapped in a sleep-like state of limbo. He began again, creating his paradise for humanity. He worked slowly over millennia. God chose his savior and sent him on his holy quest.