The Lamp of the Doctrine of Ignorance: Sixty

One speaks of Brahman, another of emptiness; one seeks liberation in the unity of existence, another finds peace in the non-existence of existence—yet both arrive at the same silent destination: the transcendence of duality, the dissolution of ignorance, and the ultimate transparency of consciousness.

The linguistic difference between Brahman and emptiness: Advaita Vedanta employs the term "Brahman"—which is sat-chit-ananda, meaning the indivisible unity of existence, consciousness, and bliss. Madhyamaka uses the term "emptiness"—which is nihsvabhavata, meaning the inherent essence-lessness of all beings. Externally, these two terms appear opposite—one suggesting fullness, the other emptiness. But philosophically, both express the same reality from two different perspectives. Advaita's Brahman transcends all qualities, forms, and distinctions; Madhyamaka's emptiness also transcends all qualities, forms, and distinctions.

Advaita's Brahman is not a particular object, nor a personal God—rather, it is a reality that encompasses all concepts while itself remaining unlimited by any concept. Madhyamaka's emptiness is similar—it is not a "non-existence," but a state where all concepts of being and non-being dissolve. Therefore, both speak not of "metaphysical reality" but of metaphysical presence—a state beyond the limits of understanding, the undisturbed condition of self-consciousness.

The meeting point in the unity of experience: Advaita's ultimate experience is self-realization—"I am Brahman." Madhyamaka's ultimate experience is wisdom—"I am nothing." But the deepest meaning of this "I am nothing" is—when the center called "I" dissolves, what remains is infinite awareness. And this is precisely the Brahman-nature consciousness of Advaita.

In Advaita, the self is identical with Brahman; in Madhyamaka, the self is not inherent but dependently arisen—yet the result is the same—both speak of ego-transcending consciousness. What Advaita calls "Brahman-realization," Madhyamaka calls "direct perception of emptiness"—in both cases, mind and language come to a halt, and consciousness rests in its boundless transparency.

Unity in the philosophy of silence: Both Advaita and Madhyamaka express ultimate truth through silence. Shankara says—"Brahman cannot be expressed in language; one who knows does not speak; one who speaks does not know." Nagarjuna also says—"What can be spoken is false; what is true cannot be spoken." These two statements are like reflections of each other.

Advaita's silence is of the fullness of self-nature; Madhyamaka's silence is of the cessation of all concepts. But at the final edge of both is a stillness—this silence itself becomes ultimate expression, where nothing more remains to be said, nothing more to be known.

Transcending the limits of logic and contemplation: Advaita's contemplation is "neti neti"—"not this, not that." Madhyamaka's analysis is similarly "chatushkoti-vinirmukta"—meaning "neither is, nor is not, nor both, nor neither both." Both paths shatter all propositions, logic, and categorizations. Consequently, both employ "terminative logic"—where logic transcends itself and becomes silent understanding. This is not the end of knowledge, but knowledge's fulfillment—where knowledge passes beyond itself and transforms into wordless insight.

Where did the term 'chatushkoti' originate? Let us examine.

Chatushkoti (Catuṣkoṭi) is not a singular Buddhist innovation; its roots are found in ancient Indian logic and analytical methods, where philosophical questions were generally analyzed through four alternatives (koṭi). "Koti" (koṭi) means limit, edge, or direction—that is, the four possible logical alternatives of any proposition or inference.

In ancient Indian thought (Upanishads, Samkhya, Nyaya, Buddhist Abhidhamma, etc.), when any matter was examined, it was said—it exists (asti), it does not exist (nāsti), it both exists and does not exist (ubhaya), it neither exists nor does not exist (anubhaya). These four possibilities together marked the boundaries of thought. Collectively, these were called—chatushkoti or tetralemma (fourfold negation).

Usage in ancient logic and Buddhist Abhidhamma: According to Nyaya and Vaisheshika, existence (sat) and non-existence (asat) are two distinct real states. Objects either exist (manifest) or do not exist (unmanifest). There is no third or fourth possibility. According to Buddhist Abhidhamma, objects (dharmas) are momentary; their existence is also relation-dependent—but they generally discussed within "exists" and "does not exist." But Madhyamaka transcends these two limits and says—nothing can be grasped through any of these four alternatives: "exists," "does not exist," "both," or "neither."

"From what is the world born?" In Nagarjuna's time, all Indian philosophers were seeking answers to this question—where does this world or any being come from? There were four possible answers—from itself (self-caused); from another (other-caused); from both (self + other); from neither (uncaused). All four alternatives were accepted by various schools in the Indian philosophical tradition—some said beings arise from themselves (Samkhya, materialists); some said they arise from others (Vaisheshika, etc.); some said from both (syncretistic views); and some said there is no cause (uncaused nihilism).

Nagarjuna's position was—all are wrong. Nagarjuna says none of these four positions holds. He demonstrates through logic that each alternative is self-contradictory.

(a) If something arises from itself (self-originated), then arising becomes meaningless. For what already exists in itself has no need to be "born" again. For instance, if fire arises from itself, then fire was always already there—so what new thing called "burning" occurred? Therefore, the concept of "arising from itself" is illogical—it destroys the very notions of causation and change.

(b) If something arises from something else (other-originated), then what is meant by "other"? If the "other" thing itself depends on yet another something, we fall into an infinite regress—which has no first cause. For instance, if a tree comes from a seed, where did the seed come from? And its source? At some point, the causal process becomes illogical. Therefore, the concept of "arising from other" also fails.

(c) If something arises from both itself and other (both-originated), then contradiction emerges. For "self" and "other" are mutually exclusive concepts. How can one thing be simultaneously its own cause and the cause of another? For instance, a person cannot give birth to themselves and also give birth to another at the same time. Therefore, this third alternative is also impossible.

(d) If something does not arise from anything (uncaused), then it becomes completely random, chaotic, and illogical. Then there would be no rules or cause-effect relationships at all. For instance, if things could appear suddenly without any cause, why wouldn't a tree suddenly grow inside a house today? Uncaused creation is logically absurd. Therefore, the fourth alternative also fails.

All alternatives as limits of language and thought: Nagarjuna's conclusion—these four alternatives all arise from the framework of thought and language. But reality (tattva) lies beyond thought. He says—arising, destruction, existence, non-existence—all are interdependent (pratityasamutpada). Therefore, no object or being arises with "inherent nature" (svabhava-satta). Everything arises dependently through other conditions, so nothing can be grasped as "independent" or "ultimate." This is emptiness (Śūnyatā)—not the absence of existence, but the absence of inherent existence.

Philosophical meaning: Nagarjuna is not offering nihilism here. He is saying—the "arising" and "existence" we conceive are merely projections of language and thought. In reality, there is only a flow of relationships and conditions, with no independent center. Therefore, the question "where does it come from" is itself the wrong question. For "coming" and "going" are only relative-level concepts; in ultimate truth, nothing is born, nothing dissolves—everything moves within the dance of interdependence.

Nagarjuna's logic is a profound revolution—he shows that all philosophical positions remain trapped within thought's dualistic framework. When mind transcends this duality, then it is seen—emptiness means non-duality—the middle way between existence and non-existence.

Thus, arising, existence, non-existence—all concepts are logically relative. Truth falls within no "koti" or limit—hence it is "chatushkoti-vinirmukta."

The meaning of breaking the four kotis:
Nagarjuna demolishes these four alternatives one by one—
Asti (It exists): If truth inherently exists, then change is impossible.
Nasti (It doesn't exist): If nothing exists, then experience itself is false.
Ubhaya (Both): Contradiction arises—something cannot simultaneously exist and not exist.
Anubhaya (Neither): Then no relationship or knowledge is possible.

Thus, all four logics cancel each other out, and the framework of thought collapses. In this state, the brain stops; when thinking ceases, only pure consciousness remains. Buddha called this state—"nirvana."

Philosophical purpose—not logic, but realization: Nagarjuna's aim is not to create "nihilism"; he wanted to transcend the conflicts of thought and language to directly perceive reality. Chatushkoti here is a mental framework, and being "chatushkoti-vinirmukta" means—crossing beyond the limits of thought, concepts, theories—to rest in undiscriminating consciousness. In this state, there is neither "yes" nor "no"—only silent awakening. This is Madhyamaka wisdom.

Chatushkoti and the Middle Way (Madhyamā Pratipad): One of the fundamental pillars of Buddhist philosophy is the Middle Way (Madhyamā Pratipad), which Gautama Buddha himself proclaimed. He spoke of avoiding two extremes and adopting a balanced lifestyle and philosophical perspective. These two extremes are:

Eternalism (śāśvata-vāda): According to this doctrine, everything is eternal and unchangeable. The belief that the soul, world, or other beings are indestructible—this is eternalism. It gives the concept of extreme permanence, where no possibility of change or destruction exists.

Annihilationism (uccheda-vāda): Opposite to this, annihilationism believes that death brings complete destruction of everything. No soul or being remains, and this life is the end. It gives the concept of extreme transience and nothingness.

Buddha avoided these two extreme doctrines and spoke of a Middle Way that, without being bound to any extreme belief, teaches us to perceive reality in its true form. Later, Nagarjuna (approximately 150-250 CE), one of the principal philosophers of Mahayana Buddhism, made this concept of the Middle Way more detailed and profound. He was not limited merely to the middle between eternalism and annihilationism, but included two additional limits, introducing the concept of "chatushkoti" (Catuṣkoṭi) or four kotis. These four kotis are:

1. Existence (Is): Something exists.
2. Non-existence (Is not): Something does not exist.
3. Both (Both is and is not): Something simultaneously exists and does not exist.
4. Neither (Neither is nor is not): Something falls into neither existing nor not existing.