Was there a novel about immortal cultivation in which the protagonist's town had a self-proclaimed fortune-teller surnamed Zhang?

The main character seemed to have eaten a snake's gall. An immortal cultivator wanted to take him as a disciple, but he did not take him as a disciple when he saw that he did not have a spiritual root. The last chapter was called Dao and Nature. The first few chapters were about how people followed the earth, the earth followed the heaven, and the heaven followed the Dao. The last chapter of the main character was at the Soul Formation realm and did not break through. When he returned to the town, he saw the two immortal cultivators. One was the fortune-teller, and the other was the one who originally wanted to take the main character as a disciple. Then they made a bet and wanted to take the main character as a disciple again. When the main character ascended, they were stunned. It seemed to have been read two years ago. Ask for the title