After arriving in this world, the craziest thing Zheng Ming did was to directly slay the Golden Lotus Great Sage!
The benefits of slaying a saint are immense. Not only did he acquire numerous treasures, but he also obtained the supreme treasure, the stone bridge, held by the Golden Lotus Great Sage. Although he hasn't figured out the name of this stone bridge, he has seen its effects.
It can rival the Taiji Diagram!
It can set the Earth, Water, Wind, and Fire in place, can transcend all dangers. Standing on the bridge, amidst battles at the Saint level, one is already undefeated.
If it weren't for the Taishang Daozu, if he hadn't detonated two supreme treasures, how could he have directly exterminated a Great Sage?