What is the reason for Kang Sengyuan's seclusion?

Dissatisfied with the political corruption and social atmosphere at that time. According to historical records, the monk Kang in Tang Dynasty was demoted as a frontier fortress because of a dispute with Yang. Later, when he lived in seclusion in Shifengshan, he decided to live in seclusion in the mountains, mainly for political and personal reasons. On the one hand, he expressed dissatisfaction with Tang Xuanzong's love for Yang Guifei, and on the other hand, he was dissatisfied with the political corruption and social atmosphere at that time and advocated elegant style. Kang Sengxiu (780 -84 1) was a famous poet and calligrapher in the Tang Dynasty.