Wang Suzhou's meaning was very clear to Nie Zhenbang, and he understood perfectly. Not being in the right state of mind meant that his mindset was still imbalanced. In that state, the decisions he made and his thoughts at the moment would be completely different from those he would have in a normal state.
Moreover, Liu Yong was the most dangerous at this time, about to retire, his political life nearly over. It was like dealing with a dying person; how could you do anything to him? Neither threats nor temptations had any meaning anymore because you could not move him. He had no further desires; he had become unyielding.