The alchemist explains that the flames of the three pills are constantly changing, and that it is not possible to separate them all at once. Each pill has its own characteristics, and the alchemist uses his own spiritual powers to control the temperature of the flame so that the potion can reach the desired temperature. It is not easy, he says, to separate different kinds of fire arrays, but chen-qin can do so. The alchemist shakes his hand and loses control of the fire array. He blames himself for the loss of control, and says that he would have been able to fix the problem by adding the herbs at a later time, but they have all been added at once