To make Sanzhidan, on the whole, it was not smooth, and the first time he started it, he Tian failed.
It's the first time for us to fail when there are precedents for success.
However, the failure of alchemy is a necessary process for familiarity with mastery. If you want to achieve success in one step and one time, only in those low-level Dan medicine, this will happen.
So He Tian summed up the lessons of failure, recalled the successful experience, analyzed and re-analyzed. In the case of three successive failures, all succeeded in the next six. At the tenth time of the final total, there was a case of...