If Zheng Ming had chosen the Xun Devil Body, at this point, his phenomenon should have been a vision of intersecting wind and fire, with towering devil flames.
Unfortunately, Zheng Ming opted for the Taoist Heart Seed Demon Technique, so even now, his physique remained that of a Cang Bear Body.
The phenomenon appeared quickly and vanished just as fast, in the blink of an eye, the vision that had manifested behind Zheng Ming had disappeared without a trace.
However, the disappearance of the phenomenon did not affect Zheng Ming's effort to open his middle Dantian; he quickly cycled his inner strength that had surged into his middle Dantian, rampaging through it wildly.
After a quarter of an hour, Zheng Ming's middle Dantian had reached a size of nine inches. And the inner strength within his middle Dantian had dwindled to a mere wisp.