The History of Li-ism describes how Kuan Yin, the sacred-personage of Li-ism, had showed herself twice to Yang to pass on the great doctrine and sacred classics to him.
據理教教史的記載，是聖宗古佛（觀世音菩薩），曾兩次顯身，點傳楊來如真經聖理，傳給他大忠、大孝的「在理」大道。