Chapter 4: Understanding by Faith
Although the four eminent voice hearers have attained to enlightenment through the parable, it seems that their traces have not been thoroughly examined because they have become enlightened just lately. Therefore, they tell themselves [the parable of] “the poor son” in order to [examine and] display their understanding. Their understanding must be thoroughly examined, which is then called belief and understanding. Again, also illustrated here is the process (tao) of the three turned One.