According to him, Zen was the “seeing into one’s own Nature.” This is the most significant phrase ever coined in the development of Zen Buddhism. Around this Zen is now crystallised, and we know where to direct our efforts and how to represent it in our consciousness. After this, the progress of Zen Buddhism was rapid. It is true that this phrase occurs in the life of Bodhi-Dharma in the Records of the Transmission of the Lamp, but it is in the part of his life on which we cannot put much reliance. Even when the phrase was actually used by Dharma, it was not necessarily considered by him the essence of Zen as distinguishing itself from other schools of Buddhism. Hui-nêng however was fully aware of its signification, and impressed the idea unequivocally upon the minds of his audience. When he made his first declaration of Zen for the benefit of Yin-tsung, the statement was quite unmistakable, “We talk of seeing into our own Nature, and not of practising dhyana or obtaining liberation.”[4.56] Here we have the gist of Zen, and all his later sermons are amplifications of this idea.
By “Nature” he understood Buddha-Nature, or more particularly from the intellectual point of view, Prajñā. He says that this Prajñā is possessed by every one of us, but owing to the confusion of thought we fail to realise it in ourselves. Therefore we must be instructed and properly guided by an adept in Zen Buddhism, when we shall open a spiritual eye and by ourselves see into the Nature. This Nature knows no multiplicity, it is absolute oneness, being the same in the ignorant as well as in the wise. The difference comes from confusion and ignorance. People talk so much, think so much, of Prajñā, but fail altogether to realise it in their own minds. It is like talking about food all day, however much we may talk we forever remain hungry. You may explain the philosophy of Śūnyatā for ten thousand years, but so long as you have not yet seen into your Nature, it is absolutely of no avail. There are again some people who regard Zen as consisting in sitting quietly with an empty mind devoid of thoughts and feelings. Such know not what Prajñā is, what Mind is. It fills the universe and never rests from work. It is free, creative, and at the same time it knows itself. It knows all in one and one in all. This mysterious working of Prajñā issues from your own Nature. Do not depend upon letters but let your own Prajñā illumine within yourself.
2. The inevitable result of it was the “abrupt” teaching of the Northern school. The seeing is an instant act as far as the mental eye takes in the whole truth at one glance—the truth which transcends dualism in all form; it is abrupt as far as it knows no gradations, no continuous unfolding. Read the following passage from the Platform Sutra, in which the essentials of the abrupt doctrine are given:
“When the abrupt doctrine is understood, there is no need of disciplining oneself in things external. Only let a man always have a right view within his own mind, no desires, no external objects will ever defile him. This is the seeing into his Nature. O my friends, have no fixed abode inside or outside,[f102] and your conduct will be perfectly free and unfettered. Take away your attachment, and your walk will know no obstructions whatever.... The ignorant will grow wise if they abruptly get an understanding and open their hearts to the truth. O my friends, even the Buddhas will be like us common mortals when they have no enlightenment, and even we mortals will be Buddhas when we are enlightened. Therefore we know that all things are in our own minds. Why do we not then instantly see into our own minds and find there the truth of Suchness? In the Sutra on the Moral Conduct of the Bodhisattva we read that we are all pure in our Self-nature, and that when we know our own minds we see into this Nature and all attain to Buddhahood. Says the Vimalakīrti Sūtra, ‘An instant opening leads us into the Original Mind.’ O my good friends, while under my master Jên, I realised the truth the moment I heard him speak and had an instant [i.e. abrupt] glimpse into the true essence of Suchness. This is the reason why I now endeavour by means of this doctrine to lead truth-seekers to an instant [i.e. abrupt] realisation of Bodhi. When you by yourselves look into your minds, you perceive at once what the Original Nature is....
“Those who know by themselves do not look for anything external. If they adhere to the view that liberation comes through external aid, through the office of a good wise friend, they are entirely at fault. Why? There is a knower in your own mind and it is this that makes you realise the truth by yourselves. When confusion reigns in you and false views are entertained, no amount of teaching by others, good wise friends of yours, will be of use for your salvation. When on the other hand your genuine Prajñā shines forth, all your confused thoughts will vanish in an instant. Knowing thus what your Self-Nature is, you reach Buddhahood by this single understanding, one knowledge.”
3. When the seeing into Self-Nature is emphasised and intuitive understanding is upheld against learning and philosophising, we know that as one of its logical conclusions the old view of meditation begins to be looked down as merely a discipline in mental tranquillisation. And this was exactly the case with the sixth patriarch. Since the beginning of Buddhism there have been two currents of thought concerning the meaning of meditation: the one was, like Arāda and Udraka who were the two teachers of the Buddha, to take it for suspending all psychic activities or for wiping consciousness clean of all its modes; and the other was to regard meditation simply as the most efficacious means for coming in touch with the ultimate reality. This fundamental difference of views with regard to meditation was a cause of the unpopularity at first of Bodhi-Dharma among the Chinese Buddhists, scholars and dhyana-masters of the time. It was also a factor of divergence between the Niu-t‘ou school of Zen and the orthodox teaching of the fourth patriarch, as well as between the Northern and the Southern school of Zen Buddhism after the fifth patriarch. Hui-nêng, the sixth patriarch, came out as a strong advocate of intuitionalism and refused to interpret the meaning of dhyana statically, as it were. For the Mind according to him at the highest stage of meditation was not a mere being, mere abstraction devoid of content and work. He wanted to grasp something which lay at the foundation of all his activities mental and physical, and this something could not be a mere geometrical point, it must be the source of energy and knowledge. Hui-nêng did not forget that the will was after all the ultimate reality and that enlightenment was to be understood as more than intellection, more than quietly contemplating the truth. The Mind or Self-Nature was to be apprehended in the midst of its working or functioning. The object of dhyana was thus not to stop the working of Self-Nature but to make us plunge right into its stream and seize it in the very act. His intuitionalism was dynamic. In the following dialogues both Hui-nêng and his disciples are still using the older terminology but the import of this parley is illustrative of the point I want to specify.
Hsüan-chiao first studied T‘ien-tai philosophy and later while reading the Vimalakīrti he discovered his Self-Nature. Being advised to see the sixth patriarch in order to have his experience certified or testified, he came to Tsao-ch‘i. He walked around the master three times and erecting his staff straight stood before him. Said the master, “Monks are supposed to observe three hundred rules of conduct and eighty thousand minor ones; whence comest thou, so full of pride?”
“Birth-and-death is a matter of grave concern, and time waits for nobody!” said the T‘ien-tai philosopher.
“Why dost thou not grasp that which is birthless and see into that which is timeless?” the master demanded.
“Birthless is that which grasps, and timeless is that which sees into.”