"According to a letter the original map was brought from China by a Buddhist priest and concealed in this temple. “Ten years ago my brother was a consumptive. Although I was a physician he did not wish to be treated with medicines. He decided to go into the mountains and attempt a cure by himself. For ten years he has remained there and used his will power to effect a cure. Today he is a well man. During his stay there he found this map. lie evolved from it a theory of the flatness of the earth, despite all modern facts showing it to be a sphere. This theory has been his one aim in life"

This is from the article linked above, which is what I was referring to, not the map itself