On this earth, there are three tantric schools.
They are Tommy, Dongmi and Zangmi.
In the Tang Dynasty, the secret method was officially introduced to China, and it was passed down by the three masters of Kaiyuan, and was called Tommy (unfortunately, Tommy almost disappeared in China when Tang Wuzong destroyed the Buddha. Fortunately, Master Huiguo passed Tommy's secret method to the Japanese air master, otherwise it would be extinct.
In the 20th year of Tang Zhenyuan (AD 804), the Japanese air master, as a learned monk, was dispatched from Japan for the 12th time with the Tang envoys, and set out for China from Changqi. On August 10th of the same year, he drifted to Xiapu County, Fujian Province due to strong winds. Xiapu local officials escorted Konghai and others to Fuzhou, where they were treated as national guests, and then escorted him to Chang 'an. After Konghai arrived in Chang 'an, he first lived in Ximing Temple, and later worshipped Huiguo (752-805) in Qingyuan Temple, where he studied tantric Buddhism and was taught the secret methods of King Kong and fetal storage. When Konghai was in Chang 'an, he also studied China's calligraphy, poems, portraits and sculptures. He returned to China in 806 AD and brought back China classics, tantric Buddha statues, calligraphy and painting. And returned to China to spread tantric Buddhism. In 823, he presided over the East Temple in Kyoto and founded Shinrikyo, so the secret method was called Dongmi, and Konghai was the ancestor of Shinrikyo in Japan. He died in Mount Kea in 835. He was awarded the title of "Master Protector" when he was emperor (reigned from 897 to 930).
As far as teaching theory is concerned, Dongmi has completely inherited Tommy, that is to say, Dongmi is Tommy's original work and has been well preserved to this day. At the same time, it attaches great importance to the thoughts of Master Kong Hai. But Dong Mi's name is Japanese, which belongs to the old Tang Dynasty that was returned to China, so we should still call it Tommy.
In the seventh year of Hong Ren (8 16), Master Kong Hai founded the Kongoji in Keyashan, and Keyashan became the chief mountain and ancestral hall of Shinrikyo. Up to now, in Gao Yanei, the secret method has been circulated constantly, with many students and beautiful scenery in Gao Yanei. It can be said that many people travel to Japan and Onoyama will go. Gao Yanei has a strict system, so it is not easy to learn the orthodox secret law in Gao Yanei.