For example, if she wanted to manipulate Wang Tao into taking out weapons and going on a killing spree against the people around him, Wang Tao would instinctively resist such an action, even if his perception was blocked and he knew nothing of it.
Wang Tao's spiritual power was very strong; if he resisted, Jiang Shixue wouldn't even be able to make him touch his own head, let alone attack others. It was highly likely that Wang Tao would snap out of it completely.
If Jiang Shixue wanted to control the current Wang Tao, she had to choose something that wouldn't cause Wang Tao any aversion. For instance, touching her head—Wang Tao obviously wouldn't object to that.
So Jiang Shixue gave it a try and, indeed, she could make Wang Tao place his hand on her head.
