satyaṃ jñānaṃ anantaṃ brahma

brahma (the ultimate reality) satyam (is truth) jñānam (is knowledge) anantam (is infinite)

Advaita Vedānta (Ādi Śaṅkarācārya): This verse, 'satyaṃ jñānaṃ anantaṃ brahma', is pivotal in establishing the non-dual nature of reality, as it unequivocally states that Brahman is truth, knowledge, and infinite. Shankara's commentary on the Taittirīyopaniṣad, particularly on this verse, underscores the identity of Brahman and Atman, suggesting that the ultimate reality is the absolute truth, all-encompassing knowledge, and boundless. This unity is central to Advaita Vedanta, where the distinctions between the individual self (jiva) and the ultimate reality (Brahman) are seen as illusory. Shankara reasons that if Brahman were not the ultimate truth, knowledge, and infinite, there would be a duality - something other than Brahman that could be considered real, known, or bounded, which contradicts the fundamental principles of non-duality. Therefore, this verse reinforces the brahman-ātman identity, guiding the seeker towards the realization of non-duality as the ultimate truth.

Vaiṣṇava tradition (Rāmānujācārya / Madhvācārya): The Vaiṣṇava tradition, particularly through the lens of Rāmānujācārya and Madhvācārya, views this verse with a devotional emphasis. Ramanuja, in his commentary, interprets 'satyaṃ jñānaṃ anantaṃ brahma' as underscoring the Lord's (Īśvara) nature as the ultimate truth, the reservoir of all knowledge, and infinite. This interpretation highlights the distinction between the Lord and the jiva (individual self), where the jiva is dependent on Īśvara for knowledge and liberation. Madhva, on the other hand, would likely emphasize the distinction (dvaita) between the Lord and the jiva, seeing Brahman as the independent, omniscient, and infinite ruler of the universe. In both cases, the verse is seen as guiding the devotee towards a deeper understanding and devotion to the Supreme Being, acknowledging the dependency of the individual self on the divine for true knowledge and ultimate liberation.

Neo-Vedānta (Swami Vivekānanda / S. Rādhākrishnan): Swami Vivekānanda and S. Rādhākrishnan, key figures in Neo-Vedānta, interpret 'satyaṃ jñānaṃ anantaṃ brahma' as a call to recognize the universal and practical applications of the Vedantic principles. Vivekānanda, in his lectures, often emphasized the importance of realizing one's true nature as infinite and divine, citing this verse to highlight the potential for human growth and self-realization. Rādhākrishnan, with his philosophical background, saw this verse as an affirmation of the absolute reality that underlies all existence, emphasizing the unity and interconnectedness of all beings. Both thinkers connected the verse to contemporary life, advocating for a life of service, compassion, and the pursuit of knowledge, guided by the understanding that the infinite and the divine are not distant concepts but the very essence of our being, awaiting realization and manifestation in our daily lives.

More from this source