1. Tang Yan lived in the Tang Dynasty and knew everything about it. He may be a history professor.

2. After learning the scriptures, the Tang Priest obtained the supreme Buddha dharma, and he can teach the Buddha dharma to college students and educate all beings.

The Tang Priest experienced eighty-one difficulties. During these journeys, he persuaded Wukong, Bajie and Friar Sand and had a unique understanding of psychology.