Introduction to the Seal Stone: There is a large stone in front of the Ksitigarbha statue. The upper half is oval and the lower half is rectangular. The shape is very much like a huge "seal". This "Heart-Sealing Stone" is the largest and most difficult to explain among the nine "Ksitigarbha Mysteries" in the Ksitigarbha Statue Scenic Area, "the mystery of the 'Heart-Sealing Stone'". According to expert determination, the maximum diameter of the "Seal Stone" is 9 meters; from the ground to the top of the "Seal", the height is 7.9 meters. Two more "9" characters appear, which is really a "mystery" within a "mystery", which makes people feel even more magical.