Na hi dehāt na anna-dyate jñānaṃ nāpi dehāt ṛteṇa dṛṣṭam

Jñānaṃ (knowledge) na hi (not indeed) dehāt (from body) anna-dyate (is obtained) nāpi (nor) dehāt (from body) ṛteṇa (without) dṛṣṭam (seen)

Advaita Vedānta (Ādi Śaṅkarācārya): This verse from the Muṇḍakopaniṣad underscores the non-dualistic stance of Advaita Vedanta, emphasizing that true knowledge (jñāna) is not acquired through bodily senses nor is it perceived by them. Shankara, in his commentary on the Taittirīya Upaniṣad, clarifies that the senses are mere instruments of knowledge and do not themselves possess the capacity to grasp ultimate reality. He posits that the identity of Brahman and Ātman is the essence of all knowledge, which can only be intuited through the introspective process of self-inquiry. This verse supports Shankara's argument by asserting that knowledge transcends physical constraints, hinting at the existence of a higher, non-physical reality that is the ultimate goal of human pursuit. By negating the role of the body in the acquisition of true knowledge, the verse points towards the understanding that the Self (Ātman) is not bound by the limitations of the physical body, paving the way for the realization of the Brahman-Ātman identity.

Vaiṣṇava tradition (Rāmānujācārya / Madhvācārya): The Vaiṣṇava interpretation, as seen through the lens of Rāmānujācārya, emphasizes the relationship between the individual self (jīva) and the supreme Lord (Īśvara). According to Rāmānuja, the Upaniṣads, including this verse, teach us about the ultimate reality of Brahman, who is none other than Viṣṇu. The verse's emphasis on knowledge not being obtained by the body suggests that true understanding of the divine comes not through sensory perception but through devotion and surrender to the Lord. Madhvācārya, with his dualistic viewpoint, might interpret this verse as highlighting the distinction between the material body and the spiritual realm, emphasizing the necessity of divine grace for the jīva to comprehend its true nature and the nature of Īśvara. Both Rāmānuja and Madhva would agree that the knowledge spoken of here is not mundane but pertains to the spiritual understanding of one's self and one's relationship with the divine.

Neo-Vedānta (Swami Vivekānanda / S. Rādhākrishnan): Swami Vivekānanda, a proponent of Neo-Vedānta, would likely interpret this verse as underscoring the universal and practical relevance of spiritual knowledge. In his lectures and writings, Vivekānanda often emphasized the importance of realizing one's true nature beyond the confines of the physical body. He would see this verse as an affirmation of the potential within every individual to access higher states of consciousness, which is not limited by external means but requires an inner, subjective experience. S. Radhakrishnan, in a similar vein, might highlight the human quest for meaning and the eternal as a fundamental aspect of existence, suggesting that this verse encourages us to look beyond the ephemeral and the mundane towards the timeless and the universal. Both thinkers would connect this verse to contemporary life by advocating for a holistic approach to understanding, one that integrates the spiritual with the practical, leading to a more balanced and fulfilling human existence.

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