According to the great work Paths of the Inferno, we could know what Martial Deity Ding Dang had told to Bai Shounan, who was the current sovereign of Paradise:
Told me a story where thy come,
Flow my sæflod to the ground,
Ease thou mind from witched some,
Reveal the love thy never found.
It's said that this conversation inspire Bai Shounan to lead his Infinite Martial Deities out.