tat dhai tvām vijānīhi nādō veti ān vanāra-vindam

nādō (know) tvām (you) vijānīhi (as) tat (that) dhai (one) veti (knows) vanāra (forest-dweller) vindam (finder)

Advaita Vedānta (Ādi Śaṅkarācārya): This verse, tad-dhai tvāṃ vijānīhi nādō vedhān-vanāravindam, is pivotal in understanding the non-dual nature of reality. According to Shankara, the 'nādō' or sound referred to here is not just any sound, but the primordial sound that signifies the vibration of the Brahman. The 'vanāravindam' or lotus-like ears signify the individual selves (jīvātman) that are pierced by this sound, symbolizing the awakening to one's true nature. Shankara's commentary on the Kaṭhopaniṣad highlights the importance of understanding the Ultimate Reality (Brahman) as the source of all sounds, which in turn, points to the identity of Brahman and Ātman. This verse thus becomes a key in unlocking the doors to Self-Realization, guiding the seeker to understand that the ultimate truth is not something external, but an internal revelation that occurs when the individual ego is transcended. Through this understanding, one realizes the unity of all existence, underscoring the central tenet of Advaita Vedānta that the Self (Ātman) is indeed the Supreme Reality (Brahman).

Vaiṣṇava tradition (Rāmānujācārya / Madhvācārya): In the Vaiṣṇava tradition, this verse is interpreted with a strong emphasis on the personal relationship between the jīva (individual soul) and Īśvara (the Supreme Lord). Rāmānujācārya, in his commentary on the Kaṭhopaniṣad, views the 'nādō' as a metaphor for the call of the Lord, beckoning the devotee towards the path of devotion and self-surrender. The 'vanāravindam' signifies the delicate and beautiful aspect of the human soul, capable of receiving and resonating with the divine call. This interpretation underscores the doctrine of Viśiṣṭādvaita, where the individual souls and the material world are seen as distinct yet inseparable from the Supreme Being. Madhvācārya, on the other hand, might interpret this verse through the lens of Dvaita, highlighting the real difference between the Lord and the souls, yet emphasizing the Lord's initiative in guiding the souls towards liberation through various means, including the auditory symbol of His presence. Both viewpoints, however, converge on the theme of devotion and the personal relationship between the Lord and the devotee, suggesting a path of bhakti as the means to attain spiritual enlightenment.

Neo-Vedānta (Swami Vivekānanda / S. Rādhākrishnan): Swami Vivekānanda, in his lectures on the Upaniṣads, often highlighted the universal and practical application of such verses. The sound (nādō) that pierces the lotus-like ears (vanāravindam) symbolizes the universal call to awakening, a reminder to humanity of its deeper, spiritual nature. This call, according to Vivekānanda, is not just a philosophical concept but a living, vibrant force that can guide individuals towards self-realization and service to humanity. S. Radhakrishnan, in his exposition of Indian philosophy, emphasizes the significance of this verse in pointing to the inner, spiritual reality that underlies all existence. He interprets the sound as the voice of conscience, the universal moral law that prompts individuals to seek the truth about themselves and the world. Both thinkers bring this ancient verse into contemporary relevance, suggesting that its message of seeking the ultimate reality within oneself is as pertinent today as it was in the past, serving as a beacon for those navigating the complexities of modern life.

More from this source