After fusing the Divine Heaven Golden Body, he received a profound message from the panel. This message stated that if he wished to fuse the Divine Heaven Golden Body again, there was a necessary prerequisite: only when this Martial Art reached the stage of Perfection could he fuse it with Martial Arts of the same rank. Otherwise, it would be impossible to fuse again.
When he first received the panel, there were no hints whatsoever. This transformation, however, seemed to unlock some latent function of the panel. As long as he focused his mind on a certain interface, he could attain some basic information through a mysterious connection, just like with the subsequent fusion issues of the Divine Heaven Golden Body.