The power of laws of fate are divided into external and internal fate. Su Ming could sense that he had left his Brand on many cultivators' souls and felt that those people's destinies were in his hands. With this method, he could forcefully turn all of those cultivators into his own fate.
This Art was not something honorable, but Su Ming did not care. All that mattered to him was making himself stronger before the disaster descended, because only by doing so he could have the ability to protect those he wanted to protect.
The three hundred thousand cultivators in South Union, the five hundred thousand cultivators on the other side of the whirlwind, the hundreds of thousands of cultivators from New Dao Sect, and the people in Ninth Summit might not total to two million, but once the power of this much external fate surged into Su Ming's heart, his aura increased exponentially.