Feng Jun had been the one to ask Ma Sanniang about the Blood-Essence Detection Technique.
He had not been trying to pry into Cinnabar Cloud Heaven's secret art—if she did not want to tell him, she did not have to.
He was simply curious about how this secret art worked, why it consumed so much spiritual energy, and whether it could be improved.
Strictly speaking, he should not have cared how much spiritual energy Ma Sanniang expended. They were not family, after all. But she would likely need to use the Spirit Land where his parents were staying to restore her spiritual energy, so he could not help but care about it.
Besides, he was quite interested in the prospect of "improvement." He was something of an expert at modifying things now, and learning a little more was never a bad thing.
As for exposing some of his own thought processes during the improvement process, he truly did not care in the slightest. Having grown up in the information age, he had no interest in deliberately erecting barriers to information.
That was not to say he lacked vigilance or wanted to casually hand out knowledge. No one understood the principle that teachings should not be passed on lightly better than he did. But hoarding everything like a miser was not right either. Cultivators still needed proper exchanges between one another.
The detection technique they discussed this time was merely an application of a spell. It would not affect the Daoist Order's overall landscape in any way. More importantly, Cinnabar Cloud Heaven already possessed it; theirs was simply a little inferior.
So helping improve it could also be considered forming a good karmic bond.
Such assistance between the various branches of the Daoist Order was not uncommon. The most famous example