Also inscribed on the jade slip was information from three deva patriarchs of the past, people who had long since perished, but who had cultivated the Sun-Moon Vast-Sky Incantation.
That information contained tips and bits of enlightenment from those three patriarchs. Most of them expressed regret at not having the full technique. One of them even pointed out that the full technique would be powerful even after breaking through to the Demigod Realm!
It truly was a domineering technique, and very different from other, ordinary deva-level Daoist magics. By refining the spiritual power of heaven and earth, one could create a sun and a moon inside oneself. When those heavenly bodies emerged out into the open, they would truly be a second sun and moon in the vast sky!