 He was thought to have founded Trúc Lâm, the only indigenous Zen Buddhist sect in Vietnam.Not only settling in Yên Tử, he also travelled across the nation to teach Zen practices to monks and encourage his subjects to follow the Ten good acts theory ("Daśakuśalakarmāṇi").In 1301, he visited Champa, and lived for nine months at Jaya Sinhavarman III's court.