The intricacies of mastering the cauldron's heat are endless.
Unbeknownst to him, forty-nine days had passed in the heavens, marking the completion of the seven sevens.
The Old Lord guided Jiang Yuan in alchemy, teaching him three times in total.
This was the first time, corresponding to the seven sevens, and the elixir was successfully refined.
Jiang Yuan stood in the alchemy room, reminiscing about the Old Lord's alchemical process, noting that there seemed to be unique insights regarding the heat.
Each time the heat changed during the alchemy process, there were difficulties in both the intake and outflow of qi.
Jiang Yuan observed once, but he had not fully grasped it; indeed, mastering the heat was challenging, a secret not meant to be passed down.
Learning solely by observation was extremely difficult.
The Old Lord instructed the celestial boy to withdraw the fire.
Before long, the heat of the cauldron gradually diminished, and another celestial boy took out the Golden Elixir.
Before him lay a pill, bright red and fragrant, its aroma calming the heart and clearing the mind.
The Old Lord handed the Golden Elixir to Jiang Yuan, saying, "Try it; what flavor does it have?"