Tao-hsin's message, once again, was to counsel nondistinction, nonattachment, nondiscrimination; he said to abjure emotions, values, striving. Just be natural and be what you are, for that is the part of you that is closest to the Buddhist ideal of mental freedom.
There is nothing lacking in you, and you yourself are no different from the Buddha. There is no way of achieving Buddhahood other than letting your mind be free to be itself. You should not contemplate nor should you purify your mind. Let there be no craving and hatred, and have no anxiety or fear. Be boundless and absolutely free from all conditions. Be free to go in any direction you like. Do not act to do good, nor to pursue evil. Whether you walk or stay, sit or lie down, and whatever you see happen to you, all are the wonderful activity of the Great Enlightened One. It is all joy, free from anxiety—it is called Buddha.15
After Tao-hsin's visit, the birds offering flowers no longer appeared: evidence, said the later Ch'an teachers, that Fa-jung's physical being had entirely vanished. His school on Mt. Niu-t'ou flourished for a time, teaching that the goals of Ch'an practice could be realized by contemplating the Void of Nagarjuna. As Fa-jung interpreted the teachings of the Middle Path:
All talk has nothing to do with one's Original Nature, which can only be reached through sunyata. No-thought is the Absolute Reality, in which the mind ceases to act. When one's mind is free from thoughts, one's nature has reached the Absolute.16
Although Fa-jung's teachings happened to be transmitted to Japan in later years, through the accident of a passing Japanese pilgrim, his school did not endure in either country beyond the eighth century. His was the first splinter group of Zen, and perhaps it lacked the innovation necessary to survive, because it clung too much to traditional Buddhism.
As Fa-jung's years advanced, he was encouraged to come down from his mountain and live in a monastery, which his better judgment eventually compelled him to do. It is reported that after his final farewell to his disciples he was followed down the mountain by the laments of all its birds and animals. A more ordinary teacher would have been forgotten, but this beloved St. Francis of Zen became the topic of lectures and a master remembered with reverence ever after.
[HUNG-JEN, THE FIFTH PATRIARCH (601-74)]
The other well-known disciple of the Fourth Patriarch, Tao-hsin, was the man history has given the title of Fifth Patriarch, Hung-jen (601-74). The chronicles say that he came from Tao-hsin's own province and impressed the master deeply when, at age fourteen, he held his own with the Fourth Patriarch in an introductory interview. As the exchange has been described, Tao-hsin asked the young would-be disciple his family name, but since the word for "family name" is pronounced the same as that for "nature," Hung-jen answered the question as though it had been, "What is your 'nature'?"—deliberately misinterpreting it in order to say, "My 'nature' is not ordinary; it is the Buddha-nature."