Advaita in the Light of the Vedas: Twenty-Five

What does it mean to say "the existence of the world is contemporaneous with knowledge"? Does this suggest that existence is merely perception (esse = to be—having existence, percipi = to be perceived—being perceived/experienced) and nothing more? Or does the world possess an independent existence, separate from knowledge? When we say that the world's existence is contemporaneous with knowledge, two possible interpretations may arise. First, this could approach the idealistic philosophy of George Berkeley, where it is stated that "to exist is to be perceived." According to this view, there is no existence beyond perception. Advaita Vedanta supports this interpretation because it aligns with Vedanta's concept of the 'non-difference between knowledge and existence.' Second, it might suggest that the world possesses its own independent existence, separate from knowledge, but somehow related to knowledge. This second interpretation is unacceptable to Advaitic philosophy because it encourages dualism. The goal of Advaita Vedanta is to prove the unity of Brahman and to demonstrate that the duality or multiplicity of the world is relative or illusory.

If the second meaning is accepted—that the world has independent existence beyond knowledge—then this claim requires proof. The question arises: is there any definitive evidence for this? If so, what kind of evidence—perception, inference, scriptural testimony, or some form of inferential proof such as postulation based on implication? These questions specifically challenge the acceptability of the second interpretation, namely the independent existence of the world beyond knowledge, and highlight the absence of any strong evidence in its favor.

In Indian philosophy, the primary methods recognized as means of knowledge (pramāṇa) include perception, inference, postulation, and scriptural testimony/Vedic statements. Let me explain these one by one—

1. Perception (pratyakṣa) Meaning: Direct knowledge through the senses. Examples: Seeing a flower with the eyes → "This is a red rose." Hearing a sound with the ears → "Someone is calling." This is the most direct and immediate experience.

2. Inference (anumāna) Meaning: Knowledge of unseen things from a known sign (hetu)—Formula: Where there is smoke, there is fire. Examples: Seeing smoke on a mountain → understanding that there is fire there. A child's crying → understanding that it is hungry or distressed.

3. Scriptural/Textual Testimony (Śabda-pramāṇa) Meaning: Truths that cannot be obtained through ordinary senses or inference are known through scripture/Vedic/trustworthy spiritual authority. Examples: "The soul is immortal" → This cannot be proven by perception or inference; scriptural testimony is its primary evidence. "Brahman is one, without a second"—this knowledge too is gained through Vedic statements.

4. Postulation (arthāpatti) Meaning: When something cannot be explained directly or through inference, an explanation is constructed from context and logic. Examples: Devadatta doesn't eat during the day, but is fat. → Postulation: He eats at night. Light is visible inside a window, but no one is outside. → Postulation: Someone has lit a lamp inside.

Perception: Direct sensory experience. Inference: Conclusions about unseen matters from signs/symptoms. Scriptural testimony: The means to know transcendental truths. Postulation: Constructing possible explanations to resolve inconsistencies.

If someone claims that the world is completely independent of their knowledge, they must present irrefutable proof in favor of that independence. Without such proof, the claim alone is meaningless. Advaita Vedantins deeply analyze the various proof-methods prevalent in Indian philosophy. These methods include pratyakṣa (direct seeing or experiencing), anumāna (drawing conclusions based on logic and observation), śabda or āgama (scriptural statements or knowledge from authoritative texts), upamāna (knowledge through analogy), arthāpatti (when an assumption is needed to explain an event), and anupalabdhi (knowledge of absence, knowing from non-presence).

Comparison (upamāna) Meaning: Acquiring knowledge through similarity or comparison. First, an unknown object is explained by comparison with something familiar. Later, when actually seen, the object can be recognized based on that comparison. Example: Someone has never seen a rhinoceros. They are told—"It is like a cow, but with a horn on its forehead." Later, when actually seeing a rhinoceros, remembering that comparison and being able to recognize it—this is upamāna.

Non-apprehension (anupalabdhi) Meaning: Acquiring knowledge from the absence or non-presence of something. That is, knowledge that an object does not exist is gained directly from that absence. Example: Looking at a table and understanding—"There is no pot here." This knowledge about "not being there" is anupalabdhi.

The fundamental argument of Advaita Vedantins is that none of these proof-methods can establish an independent existence of the world beyond knowledge. According to them, perceptual knowledge can only know objects through our consciousness, but cannot prove the knowledge-independent existence of those objects. Inference too is built on our experience and ultimately cannot go beyond the boundaries of knowledge. Scriptural or Vedantic teachings also primarily deal with self-knowledge and the unity of Brahman, which does not support the notion of the world's independent existence. Similarly, upamāna, arthāpatti, and anupalabdhi—all these revolve around our world of knowledge and feeling and are incapable of establishing the existence of a knowledge-independent entity. Therefore, Advaita Vedantins reach the conclusion that the notion of the world's independent existence is merely an imagination, with no real proof. The world is dependent on our knowledge and has no separate existence apart from knowledge.

Suppose you say perception itself is the proof. Then we ask—"This perceptual cognition—'This is an earthen pot'—does it indicate the difference between the pot and knowledge of the pot? Or does some other separate perception indicate this difference?" If you say that the same perception captures this difference, then the question would be—is this perception known by itself, or is it known through some other knowledge? Here Advaita Vedanta points out the limitations of perceptual proof. When we see an earthen pot, the knowledge 'This is an earthen pot' arises in our mind. Does this perception prove that the pot and my knowledge about the pot are two different entities? The Advaitin asks: does this perception directly indicate their difference, or is another perception needed to know this difference? If it is said that the same perception indicates this difference, then the next question becomes even deeper: does this perception know itself (self-luminous), or must it be known through some other knowledge? This question gives birth to the debate about the self-luminosity or external manifestation of knowledge.

Self-luminosity (svayam-prakāśatva) Meaning: Knowledge is manifested from itself. When any knowledge arises, it reveals both its own existence and its object. No new separate proof is needed. Advaita Vedanta and Yogachara Buddhists believe—knowledge is self-luminous. Example: 'I know'—"I know that I am seeing." No separate light or proof is needed for this knowing. Knowledge itself reveals the presence of itself and the object.

External manifestation (para-prakāśatva) Meaning: Knowledge is manifested by something else. Knowledge cannot be known by itself; another proof or knowledge is needed to understand it. According to Navya-Nyāya, knowledge is not self-revealing, but is revealed by another (such as memory, inference, or the perception of the self). Example: I saw something, but later remembered and understood—"I had seen then." That is, knowledge was identified as knowledge through another knowledge.

This passage primarily analyzes the weakness or 'fallacy of self-dependence' in an important argument of dualists from the perspective of Advaita Vedanta philosophy. When dualists view perceptual knowledge as self-known and the difference between the world and knowledge as a qualification of perception, how their argument leads toward a logical fallacy is discussed here in detail.

In dualistic philosophy, the notion is often prevalent that perceptual knowledge does not depend on any other proof to prove its own existence; it manifests itself (Self-known Perception). Based on this concept of self-manifestation, it is said that when we see an object, such as a pot, the difference between the pot and the knowledge of seeing the pot is also captured through perception. This difference-knowledge is then seen as a 'qualification' or attribute of the pot. For example, when it is said 'This is a pot', the knowledge 'pot' expresses a determining quality of the object called pot. Such knowledge is called 'determinative knowledge' (vishishtajñāna or judgment). It actually indicates a specific characteristic or qualification of the object and through this the nature of the object is perceived.

If the difference between the pot and knowledge of the pot is taken as a qualification of the pot, then it means that perception itself is revealing its own difference. That is, our perceptual knowledge not only knows the pot, but also knows the material difference of the pot from knowledge of the pot, and sees this difference as a special quality of the pot. The knowledge that arises through this process is being called determinative knowledge. This means that knowledge is itself determining its own boundaries and itself describing its own qualities.

However, this argument contains a serious philosophical error, which is called the 'fallacy of self-dependence' or the Fallacy of Self-dependence. The fallacy of self-dependence occurs when any proof or argument depends on itself to prove its own existence or validity. Here it is being said that perception itself is proving its own difference and considering that difference as its own qualification, resulting in knowledge being called determinative knowledge. The main problem with this is:

Lack of neutrality of proof: When something is proven, that proof should come from a neutral basis. If the proof proves itself, then questions arise about its credibility. This is somewhat like a judge giving a verdict in their own case.

Circular Reasoning: This argument ultimately results in circular reasoning. Perceptual knowledge says that it knows itself and it is what knows the difference between the pot and its knowledge as a qualification. But what is the validity of this difference-knowledge dependent on? On perception's own self. That is, if 'A' proves 'B' and 'B' proves 'A', then this circle has no independent beginning or end, which gives birth to weak reasoning.