The original name of this, is a tourist monk in the Five Dynasties period. Its prototype legend is a monk who behaved grotesquely and beamed alms in Zhejiang. He often uses a wooden stick to carry a pocket to beg around and put the begging items in his pocket, hence the name "cloth bag monk". It is said that the monk Buca is the incarnation of Maitreya. His actions and words are full of Zen. His image and stories are widely circulated among the people and become an important figure in Buddhist culture. The image is often depicted as potty-bellied and smiling, which is related to the tolerant, optimistic and humorous image he gives. His stories and images have an important place in Buddhist culture.