Gu Ran was also very curious about He Qingyan's portfolio.
Ordinary psychologists using Draw-heart Therapy certainly don't wield such power, where just one look at a drawing almost drives a patient to suicide. He Qingyan could definitely get hired at Jinghai on her own merits.
Laymen witnessing this scene would find it miraculous, and the more superstitious might even think it was some sort of supernatural ability.
Although Gu Ran wasn't versed in Draw-heart Therapy, he knew some of its principles, analogous to suddenly splashing a bucket of pig's blood in front of someone with hemophobia.
Most people have their weaknesses; if a topic touches on that vulnerability, they become infuriated, and might even "die of anger."
Whether it's Draw-heart Therapy or hypnosis, the key is always "the heart."
He Qingyan, though she didn't show it, must have been quietly observing Mrs. Zhu for a long time, pinpointing her weaknesses, and incorporating them into her drawings.
