Bhagavad Gita 18:66

John Carman's study of Ramanuja's theology describes this verse, the charama sloka, the final teaching, as the textual anchor of prapatti, surrender, a doctrine later Sri Vaishnava theology built into a central and eventually disputed pillar of its own tradition. Where the Gita's eighteen chapters had argued at length for disciplined action, devotion and knowledge as complementary paths, Ramanuja's school reads this closing verse as Krishna setting all of that aside at the last moment and offering something simpler and more complete, total surrender to God as sufficient by itself, not one practice added to the others but a different kind of act altogether.

The Encyclopedia of Indian Philosophies volume on Advaita traces how Sankara's earlier, non-dualist reading treats the same verse differently, as instruction toward realizing the self's identity with Brahman rather than as a distinct devotional path standing beside knowledge. The disagreement over this one closing verse is one instance of a wider divide in how each school reads passages that seem, on their surface, to offer a path outside the disciplines the rest of the text has just spent seventeen chapters describing, which is part of why this same closing verse remains a live point of reference in Vedanta long after the debate between Sankara and Ramanuja themselves.