What this concept is saying
來機 (*láijī*, “the capacity disclosed by the one who comes”) is a Chan term for the disposition, responsive ability, and degree of understanding that a person reveals when coming to seek instruction. It is not merely what the teacher thinks the student’s “level” is. Nor is it a permanent spiritual type attached to the student like a personality label.
The two characters are worth hearing together:
- 來 (*lái*, “to come”) places the matter inside an encounter. Someone comes forward, asks, answers, hesitates, bows, argues, imitates, or falls silent. - 機 (*jī*) here means the practitioner’s 根機 (*gēnjī*, spiritual capacity or receptivity) as it becomes active: what the person can presently recognize, bear, and respond from.
Thus, 來機 is relational and dynamic. It does not sit invisibly inside a person waiting to be measured. It appears through the meeting between seeker and guide. A polished question may conceal dependence on borrowed words; an awkward answer may arise from genuine investigation. Confidence may be realization, performance, or self-protection. Only the unfolding encounter begins to show which it is.
This is why the classical materials present two apparently contrary instructions: 辨來機 (*biàn láijī*, discerning the capacity that comes) and 挫來機 (*cuò láijī*, checking, testing, or frustrating its habitual momentum). Read together, they form a safeguard against two errors: responding without seeing the person, and imagining that seeing the person means classifying them.
The *Recorded Sayings of the Ancient Worthies* (《古尊宿語錄》) asks:
“On entering the gate, why must one discern the capacity that comes? A bedraggled Chan practitioner does not know himself.”
—《古尊宿語錄》：「入門何必辨來機，潦倒禪和不自知。」
This does not simply prohibit discernment. Its point is sharper: a person who has not seen through his own confusion should be wary of posing as an expert on other people’s capacities. “Discerning the student” can itself become self-deception—a role performed by someone attached to being the teacher.
The same text evokes famous Chan expressions and cases: the cypress before the courtyard, “ordinary mind is the Way,” peach blossoms, “go drink tea,” beating the drum, and “three pounds of hemp.” Its warning is that living responses become dead obstacles when treated as answer keys. It says:
“Insisting on annotations for the cypress before the courtyard instead drives a needle into level ground.”
—《古尊宿語錄》：「栢樹庭前剛指注，翻令平地下針錐。」
The image is exact. The ground was not obstructed; obsessive explanation manufactures the obstruction. If a teacher hears a student’s question and mechanically retrieves an old master’s reply, neither the student’s present condition nor the original case has truly been met. A phrase once used to free someone becomes something to imitate, defend, and collect.
The *Book of Serenity* (《萬松老人評唱天童覺和尚頌古從容庵錄》, commonly abbreviated 《從容庵錄》) emphasizes another side. Its verse places “checking the capacity that comes” beside “commanding the authority”:
“Check the capacity that comes; command the authority. In affairs there is an awe that must be enacted; in the realm there is a decree not to be violated … In one lift and one press, observe the activity of mind.”
—《從容庵錄》：「挫來機，總權柄，事有必行之威，國有不犯之令……一擡一捺看心行。」
Here 挫 (*cuò*) must not be reduced to humiliating, defeating, or dominating a student. The commentary says that Yantou, Deshan, and Dongshan each “checked the capacity that came” and each “commanded the authority,” but they did not all use the same treatment. Yantou recognized Deshan’s authority and therefore “did not take away his functioning” (不奪機); he followed the situation and bowed. Dongshan recognized that Yantou would not submit to ordinary probing or correction, so he cast out a verbal hook and bait to draw out what Yantou would do.
Accordingly, checking the incoming capacity can mean not interfering, yielding, affirming, pressing, exposing, or testing. The act is defined by what the encounter requires, not by how dramatic it looks. Sometimes a blow is recorded; elsewhere a person bows and is “let go without being struck.” The presence or absence of force is therefore not the principle. Responsiveness is.
The text describes this testing through images of a “red-thread snare,” a “blue-jade pitfall,” a “device for trapping a tiger,” and troops concealed for battle. Such language belongs to the stylized combat imagery of Chan encounter dialogue. It portrays a situation in which prepared positions are brought into the open. But the commentary refuses to reduce this to clever masters tricking gullible students. It says:
“One measure of mental activity is one measure of compassion.”
—《從容庵錄》：「一分心行，是一分慈悲。」
This 心行 (*xīnxíng*) is the movement or operation of mind disclosed in conduct. To observe it is not merely to decode a clever sentence; it is to see where the person is standing, what they cling to, and how they move when their preferred footing is disturbed. The same commentary remarks that without undergoing a fall, one does not learn from it: encounter can reveal an attachment that solitary speculation leaves untouched.
This places 來機 within the path of liberation. Buddhist liberation is not completed by possessing correct descriptions of awakening. Clinging can appropriate even emptiness, nonduality, meditation, and the sayings of the patriarchs. In the Chan setting, 來機 names the practitioner precisely where doctrine meets embodiment: Can this person remain free when contradicted? Are they resting in direct understanding or reproducing language? Do they turn silence into a refuge? Can they receive correction without constructing a wounded self—or praise without constructing an accomplished self?
A teacher’s response is meant to expose and loosen such fixation. But because domination is itself fixation, the guide must also be free enough not to force every visitor through the same method. Genuine discernment is inseparable from self-knowledge, compassion, and the capacity not to perform “Zen.”
A walkthrough in everyday life
Consider a contemporary practitioner who has been reading Chan texts and comes to speak with a teacher after a painful breakup.
The practitioner says, “I understand that attachment is empty, so I should not feel hurt.”
First, this entire arriving configuration is the 來機—not merely the person’s intellectual ability. It includes the borrowed doctrinal language, the wish to stop suffering, the shame about still feeling grief, the expectation that a Buddhist ought to be untouched, and the way the person uses “emptiness” at this moment. The “capacity” is being disclosed through speech, emotion, posture, timing, and response.
The common mapping error would be to rank the person immediately: “They know the word emptiness, so their capacity is advanced,” or “They are emotional, so their capacity is dull.” Neither judgment follows from the classical definition. Vocabulary is not realization, and emotional pain is not proof of spiritual incapacity.
The teacher asks, “Before you call the grief empty, where do you feel it?”
This is a lift or press—擡捺 (*táinà*, raising and pressing)—in a modest contemporary form. It interrupts abstraction and tests whether the practitioner can meet present experience without sheltering in a slogan.
Suppose the practitioner pauses, notices a constriction in the chest, and says, “I am afraid that if I let myself grieve, it means the relationship still defines me.” More of the 來機 has now appeared. What looked like insight into emptiness was partly a strategy of avoidance. Yet the pause also reveals receptivity: the person can relinquish a prepared answer and investigate.
The teacher may now reassure rather than press: “Feeling grief does not require making it a permanent self.” That is not inconsistency. A response that first checks the practitioner’s abstraction may then support the practitioner’s capacity to remain present. One lift and one press disclose different aspects of the same encounter.
If the practitioner instead replies instantly, “There is no one here who feels anything,” the teacher might ask, “Then who is trying so hard not to cry?” The question is a hook, but its purpose is not to score a victory. It tests whether “no-self” is functioning as liberating insight or as armor.
If the practitioner recognizes the evasion and becomes quiet, further pressure may be unnecessary. “Not taking away the capacity” can mean allowing that silence to mature. Filling it with explanations might be the very act described as driving a needle into level ground.
If, however, the practitioner begins copying the teacher’s manner—speaking cryptically, pausing theatrically, or repeating “just this”—the teacher may point directly to the imitation. The problem is not the phrase itself. The problem is 守株 (*shǒuzhū*, waiting by a tree stump for a repeated accident): turning an earlier living response into a reusable formula.
Now change the setting slightly. Imagine a manager giving feedback to an employee, a parent responding to a child, or a friend listening during a crisis. These are not Chan transmission, and the analogy must not erase the ethical and institutional differences. Nevertheless, 來機 can sharpen a useful question: am I responding to the person now present, or to my ready-made category of them?
One employee may need a clear boundary; another may already understand the mistake and need room to recover. One child’s defiance may be a test of limits; another’s identical words may arise from fear or exhaustion. The outward sentence alone does not reveal the whole situation. Yet this analogy has strict limits: ordinary managers, parents, therapists, and partners should not imitate the coercive or physically striking methods found in some Chan records. Historical encounter language is not a general license to provoke, manipulate, or injure people.
Algorithms offer another illuminating but limited contrast. A recommendation system classifies users from prior behavior and predicts what will hold their attention. Discerning 來機 is almost the opposite when practiced well: it must remain open to the possibility that a person is not identical with past patterns and may respond freshly now. Still, the comparison is only an analogy. A statistical model’s prediction and a Chan teacher’s discernment belong to different explanatory and ethical domains; neither neuroscience nor artificial intelligence has “proved” the Chan account of liberation.
Why contemporary people need it
Contemporary life rewards rapid classification. Platforms infer preferences, workplaces assign performance types, popular psychology supplies identity labels, and spiritual communities are tempted to sort people into “beginners,” “advanced practitioners,” or personality-based paths. Some distinctions can be practically useful. The danger begins when a provisional description becomes a verdict about what a person is.
來機 teaches a more disciplined attentiveness. A person is encountered through what is manifesting now, under these conditions, in this relationship. This does not deny continuity of character or differences in training. It denies that a living practitioner can be adequately met through a frozen category.
It also challenges the contemporary appetite for transferable scripts. We often want the sentence that will solve anxiety, the meditation that worked for someone else, or the famous quotation that will make us sound awake. The warning of the *Recorded Sayings of the Ancient Worthies* is especially relevant here: annotations, quotations, and methods can create difficulties where none originally existed. “Go drink tea” is not necessarily liberating when copied. It may be no more than evasion performed in antique clothing.
For teachers and communities, 來機 imposes an ethical burden. If guidance must answer the actual person, then authority cannot be justified merely by lineage, charisma, or theatrical force. The ability to unsettle someone is not evidence of wisdom. A valid intervention must be joined to accurate discernment, self-knowledge, proportion, and compassion. The *Book of Serenity*’s language of authority is therefore balanced by “observe the activity of mind” and by the claim that such attention is compassionate.
For practitioners, the concept shifts the question from “What spiritual type am I?” to “What is being revealed in the way I meet this?” Irritation at correction, hunger for approval, attachment to silence, fascination with dramatic methods, and dependence on canonical phrases are not peripheral personality quirks. They are places where grasping becomes visible and therefore workable.
That is the concept’s place on the liberation path: 來機 is not another metaphysical object to contemplate. It is the practitioner’s bondage and capacity becoming legible in encounter. 接機 (*jiējī*, meeting or receiving the capacity) is the responsive work of addressing it. The encounter succeeds not when the teacher displays brilliance, but when fixation loses some of its authority and the practitioner becomes capable of seeing and responding without leaning on a prepared position.
Common misreadings and clarifications
1. “來機 is a fixed ranking of spiritual aptitude.”
The cited records provide no taxonomy of high and low, sharp and dull. 來機 is the capacity and functioning disclosed in an encounter. Past training matters, but the term here concerns what comes forth now, not an immutable spiritual caste.
2. “辨來機 means diagnosing people from the outside.”
The *Recorded Sayings of the Ancient Worthies* questions precisely this posture. One who does not know himself can turn discernment into pretension. Authentic discernment cannot be separated from awareness of one’s own projections and attachments.
3. “挫來機 means crushing the student’s ego.”
This is both too narrow and potentially dangerous. In the *Book of Serenity*, checking the incoming capacity includes not taking away the person’s functioning, following the situation with a bow, testing with a verbal hook, raising, pressing, or letting someone pass. It is adaptive response, not uniform humiliation. “Destroying someone’s ego” can easily become a spiritualized excuse for domination.
4. “The stranger and harsher the response, the more authentically Zen it is.”
Dramatic action is not the criterion. The records themselves make the response depend upon what the visitor reveals. Sometimes no blow is given. A quiet clarification may be more exact than a shout; silence may be either freedom or avoidance. Form alone cannot decide the matter.
5. “Any clever trap counts as compassionate skill.”
No. The text’s statement that “one measure of mental activity is one measure of compassion” rejects the reduction of encounter to empty cleverness. Calling manipulation “skillful means” does not make it compassionate. If an intervention serves the teacher’s vanity, need for control, or pleasure in bewildering others, it exposes the teacher’s own unexamined functioning.
6. **“古則 (*gǔzé*, old cases) provide correct answers for recurring situations.”**
The classical warning runs the other way. The cypress, tea, peach blossoms, drum, and hemp are not interchangeable passwords. To repeat a response apart from the conditions that made it alive is to wait by the stump for the same rabbit to strike it again.
7. “Every occurrence of 機 means 來機.”
It does not. In the relevant materials, 玉機 and 機雖轉紐 concern the imagery of a loom’s mechanism and its turning; 第一機 and 應萬機 occur in other contexts. Shared characters do not establish identical concepts. Here 來機 specifically concerns the capacity and functioning disclosed by the person who comes for instruction. Related expressions such as 不奪機 and 陷虎之機 belong directly to this encounter context.
8. “來機 is just personalized teaching.”
Personalization is part of it, but the term reaches deeper. A modern service personalizes content to satisfy preference. Chan encounter may do the opposite: it can frustrate the very preference by which a practitioner maintains delusion. Yet it must do so responsively. The goal is neither customer satisfaction nor teacherly victory, but the disclosure and release of clinging.
9. “If there is no fixed method, anything a teacher does is valid.”
Absence of a formula does not abolish accountability. The classical materials demand the ability to discern, to act proportionately, to refrain when appropriate, and to examine 心行—the operative movement of mind. In contemporary communities, ordinary ethical safeguards, informed consent where applicable, clear boundaries, and protection from abuse remain indispensable. Invoking the spontaneity of Chan cannot excuse their violation.
The deepest tension in 來機 is therefore deliberate. One must see who has come, yet not imprison that person in what one sees. One must respond decisively, yet not make a fetish of force. One must use words and inherited cases, yet not substitute them for the living encounter. And before claiming to discern another’s capacity, one must notice the capacity—clear or confused—with which one is meeting them.
That tension is not a flaw in the concept. It is its wisdom. Liberation cannot be administered by template, because grasping itself continually learns to wear the clothing of the template. 來機 names the moment that clothing begins to show—and the possibility that, through an exact and compassionate encounter, it need no longer be worn.