Kṣitigarbha bodhisattva should be possibly the incarnation of the goddess in 《Rg-veda》 according to the Japanese scholar Shi Chui Qing Hui’s （矢吹慶輝） textual criticism, then belonged to the Buddha’s door at the primitive Buddhism. At the end of the fourth century, the holy name of Kṣitigarbha bodhisattva had already begun to introduce to China. At the end of the sixth century, Xin Xing（信行）Ch’an Master established Three Jie Religion（三階教） and advocated only reading 「Kṣitigarbha bodhisattva」 even more picked and selected the classical connotation of 《Ten Lun Sutra》 （《十輪經》）as guidance for the religious doctrine theory. During the middle of seventh century, 《Ten Lun Sutra》 and 《Kṣitigarbha Sutra》 were translated out then Kṣitigarbha bodhisattva was endowed with an unshirkable duty of growing and breeding the land and all things on the earth. At the beginning of eighth century, Xin Luo Country （新羅國） Kim Qiao Jiao （金喬覺）, the Monk’s name Kṣitigarbha , crossed the sea to enter into the Tang Dynasty, walked by foot to Jiu Hua Mountain （九華山）, enlightened and accomplished the Tao several years later. Among the eighth century, it emphasized that Kṣitigarbha bodhisattva was specially in charge of “the redemption in Hell” as a founder of dark hell. It was not only to be compatible with the folk advocated the ghosts and gods' culture in China but also played up the justice ideology of the dark hell, thought this one of Yama was Kṣitigarbha bodhisattva, in addition, common people wrongly recognized Maudgalyāyana （目犍連尊者）was Kṣitigarbha bodhisattva’s another incarnation, so Kṣitigarbha’s belief took shape in China gradually. Thereafter, the monk Kim Kṣitigarbha civilized to all living creatures at Hua Cheng Temple（化城寺）in Jiu Hua Mountain for seventy five years till the end of eighth century. People in China generally thought the monk Kim Kṣitigarbha was Kṣitigarbha bodhisattva’s incarnation, took advantage of wishing to come again as to show and present in human world. Thus, the belief of “Kṣitigarbha bodhisattva living in Jiu Hua Mountain” grew vigorously day by day that the numbers of disciples became second only to Avalokiteshvara bodhisattva’s belief after all. Owing to the Buddhism religious doctrines maintained equal altruism and extricated one’s own life, and therefore on the ideas of loyalty and piety became contradiction and conflict between Confucianism and Taoism, faced to the speech of defaming Buddhism, destroying Buddhism, aroused Buddhism to rapidly merge the domestic ethical ideology, initiated the unique theory of filial piety that was out of the world. To take a broad view, “ the Kṣitigarbha Three Sutras” elucidating great piety ideology was not only to meet the trend of the present age but also an Indian Buddhism China's example, still more the core of Kṣitigarbha ’s belief. In the spiritual cognition of the filial piety, Buddhism and Confucianism although integrated and coincided, but Buddhism initiated to practice the filial piety that was out of the world except the basic necessities of life is supported, even more to lay special emphasis on child's making a success of and leading parents to move ambition to
