The is Part II of our series on
Keizan Jokin Zenji's 13th Century ...
... 'Zazen-Yōjinki'
(坐禅用心記; 'Notes to Keep in Heart for Zazen')
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Thus Buddhas have arisen in this world for the one Great Matter of teaching people the wisdom and insight of Awakening and to give them true entry. For this there is the peaceful, pure practice of sitting. This is nothing but the samadhi, in which all buddhas receive and use themselves as buddhas (jijuyu-zanmai). This is the sovereign of all samadhis. Entering this samadhi, the ground of mind is clarified at once. You should know that this is the true gate to the Way of the Buddhas.
If you want to clarify the mind-ground, give up your jumble of limited knowledge and interpretation, cut off thoughts of usualness and holiness [worldly affairs and buddha-dharma], abandon all delusive feelings. When the true mind of reality manifests, the clouds of delusion dissipate and the moon of the mind shines bright.
The Buddha said, "Listening and thinking about it are like being shut out by a door. Zazen is like coming home and sitting at ease." This is true! When we are listening and thinking about it, views have not ceased and the mind is obstructed; this is why it's like being shut out by a door. Zazen alone brings everything to rest and, flowing freely, reaches everywhere. So zazen is like returning home and sitting at ease.
Being afflicted by the five obstructions [excess desire, ill-will, sloth-and-torpor, restlessness-and-worry, doubt] arises from not understanding your own nature, not clarifying yourself. Zazen is understanding your own nature. Even if you were to eliminate the five obstructions, if you haven't eliminated basic ignorance, you have not yet realized yourself as the Buddhas and Awakened Ancestors. If you want to release basic ignorance, the essential key is to sit and practice the Way.
An old master said, "When confusion ceases, clarity/tranquility arises; when clarity/tranquility arises, wisdom appears; and when wisdom appears, Reality displays itself."
If you want to cease your confusion/delusive thoughts, you must cease involvement in thoughts of good or bad. Stop getting caught up in unnecessary affairs. A mind "unoccupied" together with a body "free of activity" is the essential point to remember. [Give up all affairs with which you are involved; do not occupy your mind with any concerns nor become physically engaged in any activity. This is the primary point to bear in mind.]
When delusive attachments end, the mind of delusion dies out. When delusion dies out, the Reality that was always the case manifests and you are always clearly aware of it. It is not a matter of extinction or of activity.
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I have been reading some recently published translations of Shenhui, an 8th Century Zen figure who seems to have largely created the focus in later Zen on "sudden enlightenment" (while criticizing the "gradual enlightenment" of more traditional Buddhism). Some of his writings resonate with today's readings and our Shikantaza practice:
... What is subtle falsity? When you hear an explanation of bodhi [wisdom] and activate the intention to grasp bodhi; when you hear an explanation of nirvāṇa and activate the intention to grasp nirvāṇa; when you hear an explanation of emptiness and activate the intention to grasp emptiness; when you hear an explanation of concentration [Samadhi] and activate the intention to grasp concentration ... these are all [examples of] the false mind, of being bound to the Dharma, of having mistaken views of the Dharma. If your mind functions like this, you will not attain emancipation; this is not your inherently serene and pure mind. If you attempt to reside in nirvāṇa, you will be bound by nirvāṇa ... ; if you reside in emptiness, you will be bound by emptiness; If you attempt to reside in concentration, you will be bound by concentration ...
Friends, you should all take care to listen carefully as I explain the pure inherent mind. When you hear an explanation of bodhi, don’t create the intention to grasp bodhi; when you hear an explanation of nirvāṇa, don’t create the intention to grasp nirvāṇa ... ; when you hear an explanation of emptiness, don’t create the intention to grasp emptiness; when you hear an explanation of concentration, don’t create the intention to grasp concentration ...
...
When your mind discriminates dharmas [separate phenomena, the many things in this world], discriminate well all the dharmas. Do not activate [the mind] in consequence of this discrimination, but attain autonomy within dharmas, so that within dharmas you attain completely to the samādhi of emancipated dharmas. When all your sensory faculties discriminate well in this fashion, this is the fundamental wisdom. When you do not activate [the mind] in consequence of this discrimination, this is the fundamental concentration. The sūtra says, “Without discarding the Dharmas of the Path, one still manifests the affairs of an ordinary person ... ” [To perform] the myriad activities and worldly [affairs] without generating thoughts about those affairs: this is the combined cultivation of concentration and wisdom, which cannot be separated.
[From Shenhui's 'Platform Sermon'
https://uhpress.hawaii.edu/title/zen...chan-buddhism/ ]