This is a famous passage in the Taittriya Upanishad:
yato vacho nivartante . aprapya manasa saha . anandam brahmano vidvan.h . na bibheti kutashchaneti .
He who knows the Bliss of Brahman, whence words together with the mind turn away, unable to reach It—he is not afraid of anything whatsoever.”
However, the eminent Srivaishnavite teacher PBA Swamy seems to suggest this limitation does not apply to Tamil:
- Q. What is the reason for Divyaprabandha ghoshti to come in the front and Veda ghoshti to come behind, when perumAL goes about in the streets?
A. The Divyaprabandhams which are the Tamil Vedas tell us all about the Lord's divine auspicious qualities. However, the Sanskri Vedas which started telling about these qualities, failed in its attempt and backed off ("yatO vAchO nivartante"). The same is stressed by Vedanta Desikar, Kambar and others. This is the reason why aruLis seyals are in the front and vEda pArAyaNam is in the back
What is PBA Swami's basis to assert this?