The pact between a man and god was a series of treaties that were signed to determine the ownership of the eastern barren territory. The treaty stated that the southern alliance would have to pay a price and give up on any intentions they had towards the eastern barren territory. This was including but not limited to the issue of population and land. In return, the Human Emperor Lin Xuan and the many powerful cultivators of Xia Dynasty would have to help Mother Earth when it found the mysterious existence's base of operations and plunder the cana race!
This was a rough outline of the treaty. As for the detailed conditions, they were just supplementary. Many of them were very complicated, and Lin Xuan did not have the patience to read them one by one. He only had a simple understanding of everything and agreed.