saḥ yathā dehe asmin ātmā pratiṣṭhitaḥ saḥ evam eva hi vijānīyāt atha dehāntā tad anantaram ātmā

saḥ (that) yathā (just as) dehe (in the body) asmin (in this) ātmā (Self) pratiṣṭhitaḥ (resides) saḥ (you) evam (in this way) eva (certainly) hi (should) vijānīyāt (know) atha (then) dehāntā (beyond the body) tad (that) anantaram (next) ātmā (Self)

Advaita Vedānta (Ādi Śaṅkarācārya): This verse from the Aitareyopaniṣad underscores the non-dual nature of reality, emphasizing that the ātman is established in the body yet remains untouched by its limitations. Shankara's commentary on the Taittirīya Upaniṣad, while not directly on this verse, resonates with its theme when he discusses the ātman as being 'pratiṣṭhita' or established in the body, yet forever beyond the constraints of time and space. This understanding is crucial for grasping the brahman-ātman identity, where the ultimate reality, Brahman, and the individual self, ātman, are one and the same. The distinction between the body and the ātman highlights the temporary nature of physical existence and the eternal, infinite essence that is the ātman, pointing towards the ultimate non-dual reality.

Vaiṣṇava tradition (Rāmānujācārya / Madhvācārya): The Vaiṣṇava tradition interprets this verse with a focus on the relationship between the jīva (individual soul) and Īśvara (the Supreme Lord). According to Rāmānujācārya, the ātman, though distinct from the body, is inherently connected to Īśvara. This verse suggests that recognizing the ātman's existence beyond the body's limitations is crucial for understanding its eternal nature and its dependence on Īśvara. Madhvācārya, emphasizing the real distinction between the infinite Īśvara and finite jīvas, would likely see this verse as affirming the jīva's potential for liberation through devotion and knowledge of its true, dependent nature. The verse's mention of the ātman's establishment in the body and its continuation beyond bodily death underscores the importance of acknowledging and nurturing this divine relationship in Vaiṣṇava theology.

Neo-Vedānta (Swami Vivekānanda / S. Rādhākrishnan): Swami Vivekānanda often emphasized the practical, universal applicability of Vedāntic principles. This verse, highlighting the distinction between the transient body and the eternal ātman, would be seen by Vivekānanda as a call to realize one's true, infinite nature beyond the confines of the physical and temporal. In his lectures on the Upaniṣads, Vivekānanda frequently discussed the importance of recognizing and connecting with this inner, unchanging essence for personal and societal transformation. S. Radhakrishnan, echoing this sentiment, would interpret this verse as an encouragement to seek and understand the universal, timeless aspects of human existence, fostering a deeper sense of unity and purpose. This understanding, according to Neo-Vedānta, can guide individuals towards a more meaningful, compassionate, and fulfilling life, bridging the gap between personal growth and global harmony.

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