C1584 Opening the Cauldron to Retrieve the Pill
This Alchemy Emperor Pavilion's Pavilion Master, Yao Zun, had a hidden line: 'I didn't teach my son alchemy well, but he was so awesome. I taught him well, and he could go straight to heaven!'
It was just some usual feigning techniques.
Of course, the usual feigning techniques would never be outdated. It was fine as long as people were willing to praise him