Reality, said Nagarjuna, cannot be realized through conceptual constructions, since concepts are contained inside reality, not vice versa. Consequently, only through the intuitive mind can reality be approached. His name for this "reality" beyond the mind's analysis was sunyata, usually translated as "emptiness" but sometimes as "the Void." (Sunyata is perhaps an unprovable concept, but so too are the ego and the unconscious, both hypothetical constructs useful in explaining reality but impossible to locate on the operating table.) Nagarjuna's most-quoted manifesto has the logic-defying ring of a Zen : "Nothing comes into existence nor does anything disappear. Nothing is eternal, nor has anything any end. Nothing is identical or differentiated. Nothing moves hither and thither."
As the Ch'an teachers interpreted the teaching of sunyata, the things of this world are all a mental creation, since external phenomena are transient and only exist for us because of our perception. Consequently they are actually "created" by our mind (or, if you will, a more universal entity called Mind). Consequently they do not exist outside our mind and hence are a void. Yet the
mind itself, which is the only thing real, is also a void since its thoughts cannot be located by the five senses. The Void is therefore everything, since it includes both the world and the mind. Hence, sunyata.
As a modern Nagarjuna scholar has described sunyata, or emptiness, it is a positive sense of freedom, not a deprivation
"This awareness of 'emptiness' is not a blank loss of consciousness, an inanimate space; rather it is the cognition of daily life without the attachment to it. It is an awareness of distinct entities, of the self, of 'good' and 'bad' and other practical determinations; but it is aware of these as empty structures."16
The Zen masters found ways to achieve the cognition without attachment postulated by Nagarjuna, and they paid him homage by making him one of the legendary twenty-eight Indian Patriarchs of Zen by posthumous decree.
[KUMARAJIVA]
The Indian missionary who transmitted the idea of Emptiness to China was Kumarajiva (344-413), a swashbuckling guru who, more than any other individual, was responsible for planting sophisticated Mahayana Buddhist ideas in Chinese soil. Before telling his story, however, it may be well to reflect briefly on how Buddhism got to China in the first place.
Although there are records of a Buddhist missionary in China as early as A.D. 148, historians are hard pressed to find the name of an out-and-out native Chinese Buddhist before sometime in the third century. Buddhism, which at first apparently was confused with Taoism, seems to have come into fashion after the Neo-Taoists ran out of creative steam. Shortly thereafter, around A.D. 209, intelligible Chinese translations of Indian Mahayana sutras finally began to become available.
There were many things about Buddhism, however, that rubbed Chinese the wrong way. First there were the practical matters: Buddhism allowed, if not encouraged, begging, celibacy, and neglect of ancestors—all practices to rankle any traditional Chinese. Then there were fundamental philosophical differences: Buddhism offered to break one out of the Hindu cycle of rebirth, something the Chinese had not realized they needed; and Indian thought was naturally geared to cosmic time, with its endless cycles of eons, whereas the Chinese saw time as a line leading back to identifiable ancestors. Early missionaries tried to gain acceptability for Buddhism by explaining it in Taoist terms, including stretching the two enough to find "matching concepts" or ideas with superficial similarity, and they also let out the myth that the Buddha was actually Lao Tzu, who had gone on to India after leaving China.