I remember a monk who said he could tell fortune and help people recuperate with qigong. He said he felt hot, but he really didn't know where he was.

The real qigong conditioning is not necessarily just a feeling of fever, because the conditioned person will feel different reactions, such as heat, cold, acid, numbness, swelling, pain and so on. And generally do not touch the patient's body during conditioning, so as not to pass the sick gas to the operator. Of course, if he is a liar, that is another matter.