It appeared to be around this time that Cui became a Taoist. Previously, Cui was said to dislike "Daode Jing" and "Zhuangzi", the most important Taoist works, but he particularly despised Buddhism, believing it to be a religion of barbarians. After he met the Taoist monk Kou Qianzhi, who had reorganized the Taoist religious thoughts but received few adherents, he became a follower of Kou, and he made many petitions to Emperor Taiwu endorsing Kou's writings. Emperor Taiwu was impressed and became a Taoist and a follower of Kou as well, giving official approval to Kou's followers' proselytization of Taoism throughout his empire and approving a large amount of stipend for Kou's religious ceremonies.