In here we see another religion: greed and power. There are truth in the words of the Spiritual Father when he talked to Apostle Jo. Greed in worldly things. That is the religion of Sang Hwan's father. In this episode also we can see how Sang Mi is so persistent in breaking free but fail multiple times. The father or Sang Mi also gave up and left everything to faith. This shows that the father already reached his limit. Luckily Sang Mi is his exact opposite. Staying sane for 3 years is no joke. However Sang Mi being young, she still sees hope beyond Guseonwon, and because of that, she's making her attempts to break free. In this episode we can also see the power and influence of Guseonwon. It's scary to think that once people cement their beliefs and understanding, it is extremely hard to make them see the other side. It can commonly be seen in cults, where members cannot escape once they enter it. It is either they won't, or they can't.