Xi at one point early in his career was quite taken with Buddhist mysticism, according to the professor. In comments Xi made to the professor, including during the professor's visit to Xiamen while Xi was serving as an official there, Xi displayed a fascination with Buddhist martial arts, qigong, and other mystical powers said to aid health, as well as with Buddhist sacred sites such as Wutaishan. The professor said he does not know whether Xi was actually religious, or whether he was simply looking for a way to aid his health and well-being. Regardless, the professor said, he was extremely surprised by how much Xi knew about the subject and Xi's seeming belief in supernatural forces.