śrutvā śruti muni-vacanaṁ saḥ ca dehāt vimucyate

saḥ (he) śrutvā (having heard) śruti (of the Veda) muni-vacanaṁ (the words of the sage) ca (and) dehāt (from the body) vimucyate (is liberated)

Advaita Vedānta (Ādi Śaṅkarācārya): This verse from the Kaṭhopaniṣad underscores the pivotal role of śruti in facilitating the realization of the ultimate reality. According to Śaṅkarācārya, when one hears and understands the teachings of the munis, such as Yājñavalkya, as conveyed through the śruti, it becomes the means to liberation from the cycle of birth and death. This liberation is essentially the realization of the non-dual identity of the ātman with Brahman. Śaṅkara's commentary on this verse would likely emphasize that the words of the muni, when properly grasped, unveil the true nature of the self, which is not bound by the physical body but is, in fact, the unchanging, all-pervading Brahman. This understanding leads to mokṣa, or liberation, from the bodily constraints, allowing the individual to realize their true, timeless essence. In his commentary on the Brahma Sūtras, Śaṅkara discusses the role of śruti in revealing the ātman-Brahman identity, highlighting the importance of scriptural knowledge in achieving liberation.

Vaiṣṇava tradition (Rāmānujācārya / Madhvācārya): The Vaiṣṇava tradition interprets this verse with a focus on the devotional aspect and the relationship between the jīva (individual self) and Īśvara (the Supreme Lord). Rāmānujācārya, for example, might view the hearing of the munis' words as a form of grace that facilitates the jīva's return to its natural state of devotion to Īśvara. This verse suggests that through the grace of hearing the śruti, the individual becomes liberated from the bodily constraints, implying a transcendence of the material limitations that veil the jīva's inherent devotion to the Supreme. Madhvācārya, on the other hand, might emphasize the role of the guru and the śruti in guiding the jīva towards its ultimate goal of loving service to Viṣṇu. For both, the verse indicates the importance of śruti and the words of enlightened beings in guiding the devotee towards a deeper relationship with the Divine, ultimately leading to liberation and bliss in the presence of Īśvara.

Neo-Vedānta (Swami Vivekānanda / S. Rādhākrishnan): Swami Vivekānanda and Sarvepalli Rādhākrishnan interpret this verse in the context of its universal and practical application to contemporary life. Vivekānanda, in his lectures, often emphasized the importance of realizing one's true nature as a means to achieving freedom from the limitations of the body and the world. He would likely view this verse as underscoring the role of spiritual knowledge and the guidance of enlightened teachers in this process. Rādhākrishnan, with his focus on the integration of the spiritual and the practical, might interpret the liberation from the body as a metaphor for transcending the egoistic and materialistic tendencies that bind us, thereby achieving a state of inner freedom and peace. Both would argue that the message of this verse is not limited to ancient India but is universally relevant, encouraging individuals to seek a deeper understanding of themselves and their place in the world, leading to a more meaningful and fulfilling life. As Vivekānanda stated, 'The goal of all sciences is to find the Unity, the One out of which the many have come.' This verse, in their view, points towards that unity.

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