Due to political consideration, Tantrism in Tibetan Buddhism was adopted as the state religion for Buddhism in Yuan Dynasty and 'Huayan School suppresses Zen Buddhism', which resulted in the expansion of Huayan School and the decline of Zen Buddhism. It also resulted in most of monks focusing on managing the temple and rarely done any work of Righteousness and practicing Ruzong Commandments and Zen Practice became a challenge due to economic denefits. Luoyang, Yuandadu, Shangdu, and Wutaishan were the centrals that spread the thoughts of Northen China Huayan School. The free School adopted the Liao, Jin, Western Xia practices, used Chengguan Heritage as the system, and combined Esoteric teaching, ideological thinking, which showed the unique harmony of Avatamsaka; Jiangnan Huayan School continued the tradition of Southern Song Dynasty, they used the thoughts of Dharmakara as the main focus, they used the teachings of Dharmakara to explain the books about Zen, Lu, and Jiao. Jiao monks and Zen monks also communicated with each other frequently. Examination of the Fangzhi showed that Jiangnan Huayan Famous Temple adopted E or Yichan Teaching as their religion before Shaoxing, the first year of the Southern Song Dynasty (AD 1131), therefore the impact of "Huayan School suppresses Zen Buddhism" was not as obvious as what it is currently. Ci'en School originally came from Northern China, which was a popular School, it was being ordered to spread this thinking to southern part of China during Kublai Khan period, however, Zen Buddhism was still popular in Jiangnan. Therefore, the inheritor of Ci'en school dharma-lineage in Yuan Dynasty live in Northern China, thay are mostly good at Avatamsaka. The ones that have a good grasp of Jing, Lu, Lun, they do not ignore any of the study.
