It's just a way for her to slip her vital energy into the patient's body to replace the patient's vital energy with her own. Think of it a bit like the blood transfusion process of modern medicine. The goal here is to restore the patient's body completely."

After hearing Mr. Barnes' explanation of the process, Jaxon was even more perplexed. He couldn't help saying, "In modern medicine, blood transfusions are very common, and it does not require any special skills..

"You are really ignorant!" Mr. Barnes sneered. This time however, he was not angry.

“Let me ask you, if you have to transfuse blood to a patient, will you just stick the needles in any part of the patient's body regardless of the patient's physical condition?" Mr. Barnes asked Jaxon calmly.

"Well... Of course not," Jaxon replied.